Be active and find the killer in the picture Riddle below.

What number should come in place of the question mark below?

What month of the year has 28 days?

Find the missing letter in the last circle logically in the given below picture.

what does the below rebus means?

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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?

Rearrange the letters in "new door" to make one word.

Can you find out the missing number in the grid?

I hide my treasure in the ground, my tail is big and fluffy. If you spot me in a tree, please don’t call me scruffy. What am I?