It belongs to you, but other people use it more than you do. What is it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

Count the number of triangles in the picture below:

What does this mean?

CCCCCCC

When does a USA Potato change its nationality?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?