Why was the math book sad? Because it had too many problems.

A man walked into a library and asked the librarian, "Do you have any books on Pavlov's law?" She replied, "It's on the bottom of the pile."

I told my wife she was drawing her eyebrows too high. She looked surprised.

Why did the scarecrow win an award? Because he was outstanding in his field.

Why did the bicycle fall over? Because it was two-tired.

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