Answer:
I hide but my head is outside. What am I?
Some try to hide some try to cheat. But time will show we always will meet. Try as you might to guess my name. I promise you'll know when you I do claim.
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
I contain six letters minus one and you got twelve.
The more you take of me the more you leave behind.
I am rarely touched but often held. If you are smart you'll use me well. What am I?