Remove two matchsticks to make the below equation correct.

What came first, the chicken or the egg?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Prove that the below maths equation is true.

8 + 8 = 91

How can you take 2 from 5 and leave 4?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What has one letter and starts with an E?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

A Detective reviewed the information they had on the case so far.

A lady named 'Caterina' was found shot and they already had a list of suspects - Ankit, Tarun, Harish, Manoj and Manish.
The killer is a fan of challenges him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the no-smoking room.

All of the notes read the same thing, 'The clues are where you find the notes.' Yet, nothing was found at any place the notes were.
Detective the genius, immediately solved the case.
Who was the killer?