If eleven plus two equals one, what does nine plus five equal?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

What does this mathematical rebus means ?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

What can jump higher than a building?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

A father's child, a mother's child, yet no one's son.

Who am I?

How many times in a given day, minutes and hour clock comes in a straight line ?

A sundial has the fewest moving parts of any timepiece. Which has the most?