Replace the question mark with the correct number.

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

10+10 and 11+11 can give you the same answer.

Explain how?

By moving just one matchstick, you need to make the below statement true. Can you do it?

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

Five thieves looted a bank and they ran away in a car. The bank staff informed the police and they began the search of their car in their jeep. They found them on a road and chased them eventually catching them. The light that is used to fill the number plate was broken on the thieves' car. Also, the headlights of the jeep police were not working. How were the police able to catch the thieves then?