Find the last number in the series below:

voN luJ yaM raM ---

What is black when you buy it, red when you use it, and gray when you throw it away?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What begins with T, ends with T, and has T in it?

Solve the equation in the image by looking at the pattern closely.

Which is faster, Heat or Cold ? Explain.

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

I have feet, but no legs. Which animal Am I?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

What kind of band never plays music?