I shave every day, but my beard stays the same. What am I?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

You need to remove two matchsticks to make the below equation true. Can you do it ?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

If,

Akriti = 631
Levis = 521
Sroti = 521
Aneel = 533
Then,
Sunil =?

What seven-letter word has hundreds of letters in it?

Which of the eight images will fill the missing image in the puzzle below?

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

What number comes next in the series?

5 15 5 18 5 24 14 20 _