They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

What will you call your mother's brother's brother-in-law?

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?

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?