It's Elementary Quest

I've gotten only one, the obvious one, about Superman, but I'm lost about the other three...would love some hints!

1. Gave this unstoppable brick his powers.
2. Snikt
4. Star's and Stripes aren't the only thing that makes up this shield.

thanks for the hints. the unstoppable brick ...the thing? i thought one would be Uru, the element of Thor's hammer...but I guess not =/

are you referring to

never mind....i went to that page again and it went through....anyways thanks for the help

" I still dont know Number 3. LOL :| "

Kryptonite, Adamanitum, Vibrainium. Not sure on spelling.