What does the below mathematical rebus mean?

Can you find the odd one out from the below words ?

First Second Third Forth Fifth Sixth Seventh, Eighth Nine Ten Eleven Twelve.

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

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

I have a mouth but I don't eat.
I have a bank but have no money.
I have a bed but i dont sleep.
I wave but have no hands.

Who Am I ?

There is something which is always coming but never arrives?

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

What word is pronounced the same if you take away four of its five letters?

What is at the end of a rainbow?

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