How many beers did Bob have by that point? Provide a proof.

]]>2. If 4 and 2= 26, 8 and 1 = 79 and 6 and 5 = 111. Then, what is 7and3?

3. What 3 positive numbers give the same result when multiplied and added together?

4. What number do you get when you multiply all of the numbers on a telephone's number pad?

5. Here is a light switch. Note the order of the positions. If the light is now at medium and it is switched 3922 times what will be the position of the switch?

6. Can you arrange four nines to make it equal to 100.

8. If 1/2 of 5 is 3, then what is 1/3 of 10?

9. 100 students entered college. 55 of them chose music. 44 of them chose sports. 20 of them chose both. How many of them chose neither music nor sports?

10. Four friends are going to a concert. When they arrive, there are only five seats together left in the theater. The manager will let all four friends in for free if one of them can tell her how many different seating arrangements are possible for four people with five empty seats.

All four are let in free. Could you have given the correct answer?

12. At six o’clock the wall clock struck 6 times. Checking with my watch, I noticed that the time between the first and last strokes was 30 seconds. How long will the clock take to strike 12 at midnight?

13. There are several books on a bookshelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

14. John has been hired to paint the numbers 1 through 100 on 100 apartments.

How many times he has to paint 8?

15. You have two books. One of them is upside-down and the other is rotated so the top of the book is facing you.

What is the sum of the first page in each book?

16. There is a certain club which is for men only. There are 600 men who belong to this club and 5% of these men wear one earring. Of the other 95% membership, half wear two earrings and the other half wear none. How many earrings are being worn in this club?

17. Does a pound of gold or a pound of feathers weight more?

18. There is a chain nailed to the wall. The chain is 10 feet long and the center of the chain dips down 5 feet from where each side of the chain is nailed to the wall. How far are the 2 ends of chain from each other?

19.Little Johnny is walking home. He has $300 he has to bring home to his mom. While he is walking a man stops him and gives him a chance to double his money. The man says "I'll give you $600 if you can roll 1 die and get a 4 or above, you can roll 2 dice and get a 5 or 6 on at least one of them, or you can roll 3 dice and get a 6 on at least on die. If you don't I get your $300."

What does Johnny do to have the best chance of getting home with the money?

20. If you have 6 women and 2 friends, how many women do each of your friends get?

I created this video 20 RIDDLES TO TEST YOUR MATH, IQ AND THINKING SKILLS. And I wanted to share it with you, Try to answer all riddles, And let me know your feedback. Thanks, and Good Luck!

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Spoiler

This is base on my posted question : " Anti Square" .About most number of pieces on chess board without forming a square. Yet 34 may not be the maximum.

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On the 2 x 1 grid all 7- segment digits above can be formed one at a time as seen on clocks , calculators and other digital devices. If we are allowed to flip or rotate and overlap segments, how should these digits be configured inside the 3 x 4 grid ,so we can see all of them at the same time?

Spoiler

note: too much overlapping may cause some digits to disappear

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15 students are participating in football team & Volleyball team.

10 Students are participating in football team & Basketball team.

8 Students are participating in Volleyball team & Basketball team.

23 Students not participating at any team, whereas there are students participate at three teams.

How many students participating at three teams?

How many students participating at Football team only?

How many students participating at Volleyball team only?

How many students participating at Basketball team only?

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1) The tent on pitch 2 is owned by the French cacher. The American cacher prefers wherigos.

2) Marie’s tent is immediately to the left of the Chilean cachers. She prefers multi caches and found twice as many as the Spanish cacher, who does not favour letterbox hybrids.

3) Heidi prefers mystery caches. She found more caches than Hugo, who found more than Frank.

4) Brigitte is German. Her tent is two places left of Frank’s, who isn’t at the end of the row, and somewhere right of – but not adjacent to – the UK cacher.

5) The Chilean, who is not next door but one to the Belgian, is further right than Stanley. Pitch one much prefers earth caches.

6) Juan has pitch number 3. Sixteen caches were found by a man whose tent is pitched somewhere left of Frank’s.

7) Heidi is immediately right of the person who has flown over from the States, and who found more caches than the UK cacher. 40 Traditional cache where found by a European cacher, their favourite type.

Cachers Names: Brigitte, Frank, Heidi, Hugo, Juan, Marie, Stanley

Country: Belgium, Chile, France, Germany, Spain, UK, USA

Favourite cache type: Earth, Letterbox, Multi, Mystery, Traditional, Virtual, Wherigo

Number of finds: 2, 4, 5, 8, 10, 16, 40

A man went into a bank with a thousand dollars, all in dollar bills, and ten bags. He said, "Place this money, please, in the bags in such a way that if I call and ask for a certain number of dollars you can hand me over one or more bags, giving me the exact amount called for without opening any of the bags." How was it to be done? We are, of course, only concerned with a single application, but he may ask for any exact number of dollars from one to one thousand.

Imagine you have several distinguishable rows composed of several distinguishable columns

The intersection of the rows and columns either have a 1 or a 0.

Each row sums to the same value and the question is how many of the columns can you eliminate assuming the the 1's in each row are randomly distributed across the columns

Example, there are 30 rows and 20 columns with each row containing 7 randomly dispersed 1's. How many columns can be eliminated reducing the total in each row by no more than 2.

ABRQQNA WTKQXT EWTUFRUXCJZ GNUZCUWCAS

Solve it, then unscramble the letters in the resulting sentence (it is now an anagram) to reveal the name and surname of a politician and two of his policies (there are four words).

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They have two kids, one of them is a girl, what is the probability that the other kid is also a girl.

Assume safely that the porbability of each gender is 1/2.

Ofcourse its not 1/2 else would make it a lousy puzzle...

]]>Ans: 1/3

This is a famous question in understanding conditional probability, which simply means that given some information you might be able to get a better estimate.

The following are possible combinations of two children that form a sample space in any earthly family:

Girl - Girl

Girl - Boy

Boy - Girl

Boy - Boy

Since we know one of the children is a girl, we will drop the Boy-Boy possibility from the sample space.

This leaves only three possibilities, one of which is two girls. Hence the probability is 1/3

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This happens about 6% of the time. That is, about 94% of the time you get a configuration, with more than one peg remaining, that permits no further legal jumps. In some games the peg must end up in the original empty hole, and that happens only about 3% of the time. So, it's not a trivial puzzle.

This puzzle asks for something different, and easier: * Lose as badly as possible.* That is, select a location for the empty hole, and then find a sequence of moves that

It's simple enough to play, even without the game, by marking hole locations on a sheet of paper and using pennies.

Spoiler

*Hint*: you might first want to sketch patterns of pegs that have no further legal jumps. Then decide where to place the initial empty hole and how to make the jumps to get to the desired configuration.

As already stated, there are 15 holes. There are also 36 possible jumps. For convenience in writing sequences of jumps, they can be numbered, as follows:

Number the jumps like this: and the holes

---------------------------> **o** ------------- 1

So **Jump #1** means the **/** \ like this:

peg in hole #1 jumps **1** 2 ----------> 2 3

over the peg in hole

#2 into the empty 4 5 6

hole #4. **o** **o**

/ \ / \ 7 8 9 10**Jump #18** is peg 7 3 4 5 6

over peg 8, into 7 13 11 12 13 14 15

hole 9. / \

**o**-8 **o** 14-**o**

Holes 4, 6, 13 / \ / \ / \

begin 4 jumps; 9 10 11 12 15 16

the others 17 19 21 23

begin two. / / \ \

**o****-18** **o**-20 22-**o** 24-**o**

There are

36 jumps.

25 27 29 30 33 35

/ / \ / \ \

**o**-26 **o**-28 31-**o**-32 34-**o** 36-**o**

With symmetries taken into account, the holes have four equivalence classes:

- Corners (1, 11, 15)
- Adjacent to corners (2, 3, 7, 10, 12, 14)
- Edge centers (4, 6, 13)
- Centers (5, 8, 9)

This means that there are just four distinct places for the empty hole to start a game: { 1 2 4 5 }. All other holes are symmetrically equivalent to one of these.

Just to be sure the numbering above is understood, here is a winning game of the normal type. Start with pegs in every hole except #1. (The top hole is empty.) Then make these jumps: { 7 14 2 17 23 27 34 26 30 6 35 14 7 }. If done correctly, the original hole #1 contains the final peg.

Enjoy.

]]>He then inexplicably states that, even though you might disagree, the correct answer is actually 5!

Explanation?

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"In August, the best of the year in USA, you realized that there’s a number so significant and

leads to a lifetime experience: the fourth power of 3. Using August’s best times and your

right hand, you wrote the following line (to be decoded by you):

O N U X 1 9 ~ 7".

I've looked into many things. My first guess was that some kind of event happened on august 1. I looked for that, but to no avail. I also thought that maybe it was something that happened in august 1981, but still, nothing.

I am not asking for the solution. I just want some hint.

]]>The below is a number puzzle. It should be read left to right, top to bottom.

Question 1 What is the next two rows of numbers.

Question 2 How was this reached.

1

1 1

2 1

1 2 1 1

1 2 3 1

1 3 1 2 2 1

?

?

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Alpha and Bravo were having a meal with eight bread rolls in the *kitty*. Alpha contributed five of those rolls, whereas Bravo brought along three. Charlie (as a third person) joined them for the meal, but gave Alpha and Bravo eight coins (as compensation) afterwards. Bravo demanded a 50/50 share of that compensation, even though Alpha offered Bravo three coins, thereby keeping five coins for himself. What should the distribution of Charlie's coins be to make it truthfully a fair deal?

Two fathers and two sons each shoot a duck.

No one has shot the same duck.

Only three ducks have been shot.

]]>grandfather / father / son

]]>Father: 60 years old

Son : 6 years old

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for example say the rubber band shape is outlining these nails:

* - * - * - * - *

| /

* * * *

| /

* - * - *

Perimeter = 8 + 2*sqrt(2)

Nails = 12

Squares: 6 squares (5 - 1x1 and 1 - 2x2) --- the result of 6, at a minimum, is what we are trying to predict.

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