why
为 · 4 strokes
Simplified form of 為. Pictograph of a hand (又) guiding an elephant (象) to do work (in ancient China elephants were tamed to do work). Based on the meaning "to work; to do".
何 · 7 strokes
Depiction of a man carrying an axe on over his shoulders. The right side of the form was later phoneticized into 可. The current meaning "what" is a phonetic loan.