10+10 and 11+11 can give you the same answer.

Explain how?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Count the number of triangles in the below picture?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

Can you count the number of triangles in the given picture?

Can you replace the question mark with the correct number?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

No matter how little or how much you use me, you change me every month. What am I?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.