The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

Rectify the following equality 101 - 102 = 1 by moving just one digit.

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?