Here's a bunch of puns from a number of sources. Nothing original, just silliness.

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A lawyer walks back to his office, completely nude, and his assistant asks, "What happened?"

The lawyer responds, "I lost the suit."

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So, there's a bit of a problem with the sheep that I hope ewe would understand.

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So, there's a scientist trying to use spices as a kind of vehicular fuel. Why? Because he wants the trains to run on thyme.