If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

Which tank will fill first?

Jigsaw captured 100 people and make them stand in a circle and all these people are labelled as Person1, Person2, Person3... Person100. He made them play a crazy game in which Person 1 shot Person 2 and pass the gun to the next person and so on until one stands alive.

Which person will survive in the end?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?