You can see it everyday, But cannot touch it at will. What is it?

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

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

By using 'because' continuously three times, can you make an English statement ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

How can you leave a room with two legs and return with six legs?

What can you catch but never throw?

There is something which is always coming but never arrives?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

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