One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What has a bottom at the top?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

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

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

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