Male Answer Syndrome explained in one sentence:

[randomness]

"Unmanly is admitting you don't know." --someone a couple of tables over at breakfast.

Comments

I claim

[drwex]

People often ask me if I can answer a question for them. I assert "I can answer ANY question; often the answer is 'I don't know'."

That's not original to me, but I've forgotten from whom I stole it.

Also of late with my kids I've been practicing various forms of "I don't actually know that but we can look it up if you care."