What is the below Rebus indicate?

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.

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What do you answer even though it never asks you questions?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

What goes up but never comes down?

Prove that the below maths equation is true.

8 + 8 = 91

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?