Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

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

What does below pictogram mean?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Where do you go to learn how to make ice cream?

What runs around the whole yard without moving?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?