What building has the most stories?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

What does this simple rebus mean?

Be active and find the killer in the picture Riddle below.

What is the below Rebus indicate?

What is the next number in this series?

4,12,84,3612....

Can you Find and name the hidden bird in the picture below ?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

What is the longest word in the dictionary?