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

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

I look at you, you look at me I raise my right, you raise your left. What am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

What can go through glass without breaking it?

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?

What's the best place to go shopping in the ocean?

Solve the equation in the image by looking at the pattern closely.