How can you take 2 from 5 and leave 4?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

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

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Can you make a fire with just a single stick?

A cat, a dog and a monkey were stolen. 3 suspects got caught: Harish, Manoj and Tarun. All we know is each person stole one animal, but we do not know who stole which. Here are the investigation statements. Harish said: Tarun stole the cat. Manoj said: Tarun stole the dog. Tarun said: They both were lying. I did not steal the cat or the dog. Later on, the police found out the man who stole the monkey told a lie. The man who stole the cat told the truth. Can you find out who stole which?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

What word is pronounced the same if you take away four of its five letters?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?