A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

If eleven plus two equals one, what does nine plus five equal?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

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