When is the top of a mountain similar to a savings account?

What is the fastest way to double your money?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

If two's company, and three's a crowd, then whats four and five ?

Which is heavier: a ton of bricks or a ton of feathers?

It spends most of its day eating white, but when it’s quick enough, it gets to eat fruit and sometimes some blue things. It’s in a dark room, where the walls are blue, it runs from a ghost that roams the halls and haunts it all the time. What is it?

The Judge knows that Alamgir was killed by his girlfriend Jasline, but the judge is unsure whether to punish her. Why?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.