Answer:
I can run but not walk. Wherever I go thought follows close behind.
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.
I have a head, tail, but no arms and legs. What am I?
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 word begins and ends with an E, but only has one letter?
Give it food and it will live, give it water and it will die.