Brain Game: The Onset of Mensa

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A few _floss readers have requested a Mensa-test-level challenge, so as a card-carrying member, I'm more than happy to oblige. This one, I think, is pretty darned difficult.

What's the final letter in this sequence?

B, G, L, S, ...?

HERE'S the answer.

August 7, 2008 - 2:30am