Which Number is the odd one out?

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

What is always in front of you but can’t be seen?

Which alphabet is a part of our body?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Find the missing number in the sequence below:

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?