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

Explain how?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

There is a shop where written:
Buy 1 for $1
10 for $2
100 for $3
I needed 999 and still only paid $3. How could this be financially viable for the shop-keeper?

Akbar called Birbal and asked him to draw a line on the floor. He asked Birbal to make that line smaller without erasing it. Birbal smiled and did it before Akbar could blink his eyes.

How did he managed to do it?

Can you solve the below tricky visual equation?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Why do you find that most of the buildings are deprived of the 13th floor?

Why are all black people so quick ?

What number should come in place of the question mark below?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?