Answer:
Slang for the male half in a marriage.
What is something that can go up quite easily, but is not as easy to bring back down?
It's in your hand though you cannot feel it. Only you and time can reveal it.
Retired people want these to be large and birds want them to hatch.
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
What language does a billboard speak?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?