Can you find out the total number of triangles in the given figure?

Considering the below equation:

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

Then, I + II + III = ?

81 x 9 = 801. What must you do to make the this equation true?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M