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Mindbender: Acorns

An elm tree was swaying in the wind. It had eight branches and on each tree branch…

Mindbender: Taxi!

Spot the error in this: “There was a taxi outside a hotel. A man came out, hit…

Mindbender: Waterlily

A water lily growing in a circular pond doubles in size every day. It takes thirty days…

Mindbender: Heaviest of 3

You have nine ball-bearings, all of the same size but one slightly heavier than the others, though…