Free point for ridddles just enjoy
what is white when it is dirty?
=Blackboard
what has bank but no money?
=River
what is the end of everything
=G
i can be caught but never thrown, what am I?
=Cold

each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms

How about I ask you one.

" What flies without wings? "