Answer:
Once they sailed the sea, now they surf the web
Who is it that rows quickly with four oars, but never comes out from under his own roof?
What can be heard and caught but never seen?
It stands upright and can be quite grand. Its secret is not hidden but right at hand. What is it?
What does everyone know how to open but not how to close?
What did the baby corn say to its mother?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?