I look at you, you look at me I raise my right, you raise your left. What am I?

What is the difference between a jeweller and a jailer?

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

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

Can you find a flaw in this statement?

In The 1st month of this year(the year 2013), I noticed that the date 13-1-13 (13 January 2013) is special.

This date is special as:

Date * Month = Year.

Can you figure out which year of this century has a maximum number of such dates?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Why is it very easy to weigh a fish?

Before reading ahead, you must know the fact that only one of the people here is telling the truth.

A says that B is lying.
B says that C is lying.
C says both A and B are lying.

Can you find out who is speaking the truth?