Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Find the number of squares in the below-given picture.

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?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Which wheel of car does not rotate when you turn your car right?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Count the number of triangles in the given picture.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?