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

I am quite hot but become too cold if you remove the first two letters. What am I?

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

The more you take me, the more you leave me behind.
Who Am I?

Can you identify if it's a murder or a suicide ?

Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits

Remove two matchsticks to make the below equation correct.

Spot the cat in the picture below

Why is the Hole below a Lock?