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Riddles, one at a time

A melon weighs 2 kg plus one third of its own weight. How much does the melon weigh?

Text · Easy Challenge link
Answer

3 KG

The 2 kg must be the other two thirds, so one third is 1 kg and the melon is 3 kg.

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Which of the four words types 4663?

Video · Easy Challenge link
Answer

HOME

H is on 4, O on 6, M on 6, E on 3: 4663.

What number does the last row show?

Video · Genius Challenge link
Answer

22

The top 3 rows give lamp values 9, 3 and 1. Bright counts double: 18 + 3 + 1 = 22.

Which word fills the gap?

Video · Hard Challenge link
Answer

TRAIN

BRAIN to TRAIN changes B to T; TRAIN to TRAIL changes N to L.

One Is Mirrored

Which tile is a mirror image?

Picture · Easy Challenge link
Answer

E

Turn every tile upright: only E faces the wrong way.

After how many hours are they the same height?

Video · Medium Challenge link
Answer

4 hours

After 4 h: A is 12 − 8 = 4 cm, B is 8 − 4 = 4 cm.

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