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

What has 88 keys?

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

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

I look at you, you look at me, I raise my right, you raise your left. What am I?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

It is always ahead of me yet I can never see it. What is it?

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?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?