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

Move four matchsticks to the below square to form three squares?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

Prove that twice of ten is the same as twice of eleven.

Can you count the number of blocks in the picture below?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

In the picture given below, can you find out which digit will take place of the question mark?