Which wheel of car does not rotate when you turn your car right?

A network of 20 x 10 squares is given to you.

Can you calculate how many unique squares and rectangles can be formed combining two or more individual squares ?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

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

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

What goes through cities and fields, but never moves?

There is something which you can be arrested for attempting but not for successfully completing.

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?