Answer:
Without this, H2O would just be 2O
What has a neck and no head, two arms but no hands?
A tiny bead, like fragile glass, strung along a cord of grass.
What has only two words, but thousands of letters?
Where jewelry pierces your head.
How did the farmer find his wife?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?