Question: *Life* is singular but the noun *adventures* is plural, so which sentence is correct? 

> 
> * *Life full of adventures are waiting for us.*
> * *Life full of adventures is waiting for us.*
> 
> 
>

Answer: 
It should be the second one. Because life is singular and that is the subject of the sentence. 

Correct answer is: Life full of adventures is waiting for us.
We are talking about ***life*** which is singular and using verb ***is*** for some.

Hence it should be: **Life full of adventures is waiting for us.**

If we were using verb for plural form of a noun then it will be ***are***.