How many sides does a circle have?

Solve the equation in the image by looking at the pattern closely.

Find the value of "?" in the ball picture Riddle below:

How many letters are in the alphabet?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

How many triangles can you count in the figure given?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

You need to remove two matchsticks to make the below equation true. Can you do it ?