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Iceberg orientation

Parallax

Parts of a circle

Sneaky averages

Möbius strip

Brilliance bias

BODMAS

Sampling bias

Binary

The haversine formula

The 9 times table on your fingers

The coastline paradox

Accuracy and precision

Fix wobbly tables by rotating

Idempotence

The Monty Hall problem

Asymmetry of returns

Win at Monopoly

The most beautiful equation

the Angle of Incidence equals the Angle of Reflection