1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Find the missing letter in the last circle logically in the given below picture.

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

Who is that with a neck and no head, two arms and no hands? What is it?

If 21x = 79x, what is the value of x?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain