In the image below, can you find the value of an angle(y)

Which wheel of car does not rotate when you turn your car right?

What jumps when it walks and sits when it stands?

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?

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?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

What am I?