What has one letter and starts with an E?

What kind of tree can you carry in your hand?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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?

why number 8549176320 is one of a kind?

What is the difference between a jeweller and a jailer?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?