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Mindbender: What is it?

What starts on four legs, then on two, then on three? NEXT > [accordions id=”1513″]

Mindbender: The smuggler

Every other day, a cyclist rides a bicycle over the border between the border of the US…

Mindbender: equation II

(Variation on another equation question) Remove one short line to make this correct: 5 + 5 +…

Mindbender: Sandtimers

You have two traditional hourglass type egg timers. One takes seven minutes for the sand to run…