Answer:
What gets bigger the more you take away?
I plow and plow, but never sow. What am I?
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
When you take away the whole from me there is always some left.
Send poorly behaved children to me and let them sit here. What am I?
What word has three syllables and twenty six letters?