Be active and find the killer in the picture Riddle below.

What work can one never finish?

Readers with high attention to detail can spot the mistake in the stack of shoes in 5 seconds. Are you one of them? Test your visual skills now!

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

How many squares, of any size, can you find on this chessboard which do not contain a Rook?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Find the hidden panda in the image below.

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?