Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Find the missing number in the image below.

What type of tree can I carry in my hand?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

What kind of tree can you carry in your hand?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

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

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

Why do Chinese men eat more rice than Japanese men do ?