BrainDen.com - Brain Teasers

# dgreening

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3. ## Half as old as my brother

Nice reply! ,,, even if it is a mouthful!
4. ## Relatively prime

Yes, I would take the bet ... but I do not have a strong proof
5. ## A show of hands

I guess it helps if you read the OP correctly! DUH

Actually
7. ## Airplane with or without wind

The Best Answer still bothers me.
8. ## n!+1 is composite

Actually, that's not quite true as 1 is also a positive integer divisor. Composite really just means "not prime". Thanks
9. ## n!+1 is composite

Not familiar with the term in this usage - What do you mean by composite??

11. ## Simulating an n-sided die with two coins

Question The OP implies that the unfair coin in your example goes to one side 2 out of 3 time. Can you choose the coing such that you get a specific degree of "unfairness" [e.g., Heads 3 out of 5 times]?
12. ## Prime Sided Dice

Some initial thoughts

Here, here!

16. ## A mean, mean minimization problem

Following the earlier post, let's look at both parts of the equation
17. ## Hello guys i have a puzzle/riddle i can not work out

Thanks Rainman! I was getting frustrated playing with that grid.
18. ## k-man's kasino

K-Man is right

20. ## Tug-o-war Claims

You are right, I thought about it some more [even before I saw your post]
21. ## Tug-o-war Claims

Sorry for the delay. I was out of touch over the holidays.

23. ## Tug-o-war Claims

+g+c+d+e>+g+h+i+j,>
24. ## The Risky Choice of Going to Work

Question: Can we attach a monetary value to getting the package today?? I am not sure whether it affects the outcome or not, but it could.
25. ## Alice and Bob's marathon

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