BrainDen.com - Brain Teasers

Pickett

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8

1. Take a guess

Haha, that's kind of fun to wrap your head around...

well...

Depends...

...a lot...
5. Sorting out the bar bill

@Cygnet I think something is wrong with your solution, as one of the requirements is that "18 of us did not drink water." by your answer, you have 8 that drank nothing, 7 that drank only wine, and 11 that drank beer and wine...which totals 26 people that did not drink water.

8. Sorting out the bar bill

I'm guessing it's because I missed this piece of the assumption: "who drank beer and water but not wine were as many as possible". I'll give it another go with the non-drinkers included and that piece and see what I come up with.

Approach

Yes...I can.

FWIW
12. Increase the square

Nevermind...misunderstood the OP (again).
13. When midnight strikes

I assumed my answer was along the right lines, but I was too lazy to actually find the true minimum with it...thanks for doing the dirty work!

17. How obtuse are triangles?

My brain isn't exactly firing on all cylinders today, but...

I got

22. Simple classic puzzle on profit

I've not heard this one...but I'll take a stab:
23. Who can go the lowest?

I guess I took this question to be something different. Rather than just "what's the smallest positive value you can think of?" for which I would go with something like: 1-(3↑↑↑↑...↑↑3) or in other words: 1 over Graham's number (or simply "G")...but why stop there? why not go with 1/G↑↑↑↑↑↑↑...↑↑↑↑↑↑↑↑G That interpretation of the OP isn't as interesting or fun because it just gets ridiculous... The way I took the original question was pick the smallest positive INTEGER that no one else picks...what is your strategy when up against 9 others doing the same (all allowed to pick ho

25. Month Codes

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