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

Why do we preferably have round manhole covers and not square ones?

Can you name an animal whose killing cannot be performed without spilling your own blood?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

What is next number in the pattern below:

131 517 192 123 ?

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.

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Complete the table series riddle by finding the number that can replace "??".

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Find out the number of circles in the given picture having Illusion