Can you find out which number multiplied by itself will give the output as 12345678987654321?

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

Find the missing number in the sequence below:

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

If 1+9+8=1, what is 2+8+9?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Move four matchsticks to the below square to form three squares?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Jessica is telling her friends this story and asks them to guess if it’s the truth or a lie: “There was a man sitting in a house at night that had no lights on at all. There was no lamp, no candle, and no other source of light. Yet, he sat in the house and read his book happily.” Her friends say she’s lying, but Jessica corrects them and says she’s telling the truth. Jessica’s story is true—but how?