In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Client Dempsey living in one of the East Coast states of the U.S. was talking to Landon Donovan, who was living in the West Coast state of the U.S.

Dempsey: What time is it?
Donovan: Wow, It is the same time here.

How is this possible?

Can you find the hidden animal in the picture below?

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

Count the number of squares in the picture below.

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

What is the next number in this matchsticks series riddle?

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.