What do you answer even though it never asks you questions?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Let's play a word game. Following are some meaningless words that can be completed by adding random letters on either side of the word.

For example, the word "rdo" can be formed into "pardon".

Using the same technique, can you complete the given words?
ecalc
airb
rinci
tibac
uidel
gorit
igna
eyho

What is so fragile that saying its name breaks it?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

A fresher was sitting in an interview. The interviewer said, "This is the last question of your interview. Tell me the accurate position of the centre of this table where your resume is kept."

How can he answer this question? What will you have answered to such a question?