Can you replace the question mark with the correct number in the below table sequence?

Can you place six X (crosses) in below board without making three in a row in any way ?

O_er_t_o_

Complete the missing letters of the given word.

Can you find a five letter word that is left with only two letters if one is removed?

Move three sticks of the spiral below to form a square.

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What Time Should the last watch show in the below figure?

What does this Rebus Picture means ?