What month of the year has 28 days?

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

Which digit occurred maximum times between the number 1 and 1000?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Which fur should we be getting from the Lion?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?