John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Solve the mathematical equation in the picture below.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Can you write down eight eights so that they add up to one thousand?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

What's a single-digit number with no value?

Which digit occurred maximum times between the number 1 and 1000?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

How can you tell a raw egg from a hard-boiled egg?