Answer:
Held firmly in the hands, like a sword it cuts deep. Bloodless strokes, all, then forward we leap.
Iron on a mammal. Mammal on your feet.
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
My first is an insect; my second is a border; my whole puts the face in a tuneful disorder.
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
If I say "everything I tell you is a lie", am I telling you the truth or a lie?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?