Answer:
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I let water fall on you while everyone else stays dry.
What gets sharper the more you use it?
What is deaf, dumb, and blind, but always tells the truth?
My first is in riddle but not in little. My second is in think but not in brink. My third is in thyme but not in time. My fourth is in mother but not in brother. My last is in time but no t in climb.
What did the piece of wood say when he saw the screwdriver and screws approaching?