Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

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

The dirtier I get, the whiter I look. Who am I?

Count the number of triangles in the picture below:

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Count the number of balls in picture below:

How can you take 2 from 5 and leave 4?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

Where do you go to learn how to make ice cream?