Question

What is the noun clause for, Do whatever task needs to be done.

Answer 1

The Answer is:
Whatever task needs

Why is that the answer?:
Cause Noun Clause's always start with who, that, whom, whatever, when, where, whether, which, whichever, how, whoever, what, whomever, and why.

Answer 2

I believe that the noun clause in this sentence would be:

...whatever task needs...