How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Can you find the key in the picture below?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

What can jump higher than a building?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

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

By what process could you make a 'Tea-Table' into food?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?