What does the below rebus riddle means?

Look at the picture and find out which square is not linked with any of the other squares.

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Mr Black, Mr Gray, and Mr White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr Black, who hits his shot 1/3 of the time, gets to shoot first. Mr Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr Black, where should you shoot first for the highest chance of survival?

What is the longest word in the dictionary?

Replace the question mark in the picture below.

Can you solve the photo plexer logic ?