Mental Floss

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 You better knock, knock, knock ... on wood.

Discover the origins of the classic phrase 'knock on wood,' which could be tied to a Victorian-era children's game or have more direct ties to old pagan traditions.

Matt Soniak










This or that?

In this episode of The List Show, host and Mental Floss editor-in-chief Erin McCarthy breaks down some commonly confused pairs.

Bethel Afful






Grab your magnifying glass.

We give you an obscure word with four definitions—one correct, three made up. Can you identify the correct one?

Ellen Gutoskey