When monkey rotate the gear, which mark will be hit 1 or 2 ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

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

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

How can you make a TV, a bed, a dog, and a car liquid?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

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 ?