Here are some fun brain teasers. I'll post the answers later.
If two is company and three is a crowd, what are four and five?
How many three cent stamps does it take to make a dozen stamps?
What was given to you, still belongs to you, and although you've never lent it to anybody, is used by everyone you know?
When do two and two make greater than four?
If you drop a rock, would it fall more quickly through water at 40 degrees or 20 degrees?
A hungry horse was tied to a rope ten feet long. thirty feet away was a carrot. The horse was able to get to it. How?
What was the highest mountain on earth before Mt. Everest was discovered?