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

What does below rebus means ?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

O_er_t_o_

Complete the missing letters of the given word.

When it's bad luck to meet a black cat?

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

If 21x = 79x, what is the value of x?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”