An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

Prove that twice of ten is the same as twice of eleven.

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

What question can you never answer yes to?

Why do people go to bed?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

If six children and two dogs were under an umbrella, how come none of them got wet?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?