A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

Can you spot the man between the coffee bean in the picture below ?

What does below Rebus say?

XLR8

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you count the number of quadrilaterals in the picture below?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

What is the centre of gravity?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?