I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

People make me, save me, change me, raise me. What am I?

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What does the below mathematical rebus mean?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

A large water tank has two inlet pipes (a large one and a small one) and one outlet pipe. It takes 3 hours to fill the tank with the large inlet pipe. On the other hand, it takes 6 hours to fill the tank with the small inlet pipe. The outlet pipe allows the full tank to be emptied in 9 hours.

What fraction of the tank (initially empty) will be filled in 0.64 hours if all three pipes are in operation? Give your answer to two decimal places (e.g., 0.25, 0.5, or 0.75).

If a wheel has 54 spokes, how many spaces are there between the spokes?