Some jokes

Person 1: Knock knock.
Person 2: Who's there?
Person 1: Control freak.
Person 1: Now you say "control freak who?"

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Q: Why can't engineers tell jokes timing?

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How many kids with ADD does it take to screw in a lightbulb?
LET'S RIDE BIKES!

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A duck goes into a bar and asks the bartender, "Got any grapes?" The bartender says, "No. This is a bar and we don't sell grapes." The duck leaves.

The next day, the duck goes back to the bar and asks, "Got any grapes?" The bartender says, "I told you yeaterday. This is a bar and we don't sell grapes."

The following day, the duck returns and asks,"Got any grapes?" The bartender loses it. He grabs the duck by the neck, and yells, "I already told you twice! This is a bar! I don't have any grapes! If you ask me again, I'll nail your beak to the floor!"

The next day, the duck goes in the bar and asks, "Got any nails?" The bartender sighs and says, "No, we don't have any nails." The duck says, "Good. Got any grapes?"

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more here.