Can you find out the total number of triangles in the given figure?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

There is a square piece of paper with a hole that is denoted by the circle on the top right side in the given picture. You have to cut the paper in a manner that it forms two and only two separate pieces of paper and then rearrange the pieces in a manner that the holes come in the centre of the paper.

There are 3 apples in the basket and you take away 2. How many apples do you have now?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Before Mount Everest was discovered, what was the highest mountain in the world?

Why do people go to bed?

Why are all black people so quick ?