Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

Can you replace the question mark with the correct number in the below table sequence?

During which month do people sleep the least?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

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

Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?