What month of the year has 28 days?

What does the below mathematical rebus mean?

What does the rebus below mean?

TEN BADTION

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Prove that the below maths equation is true.

8 + 8 = 91

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?