Answer:
The ones in the sea are prickly, but the ones on the street might pickpocket you.
They can swim but they’re not fish, they are slow but they are not turtles, they live and hang from tree but they’re not monkeys. What are they?
What has a horn but does not work?
Who is it that rows quickly with four oars but never comes out under his own roof?
Oh how I love my dancing feet! They stay together - oh so neat. And when I want to walk a line, They all stay together and do double time. I count them up, ten times or more, And race on-off, across the floor.
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?