How can a man go eight days without sleep?

In the given picture, in how many ways can you read the word "Tiger"?

A man is shown a portrait painting. He looks closely, then tells, “Brothers and sisters have I none, but that man’s father is my father’s son!” Who is the man in the portrait?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

What does Alexander the Great and Winnie the Pooh have in common?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

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