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Riddles, one at a time

Which tokens pay 6 with the fewest tokens?

Video · Medium Challenge link
Answer

3 + 3

Just 2 tokens. Biggest first, 4 + 1 + 1, needs 3.

Read the Clocks

What time does clock 4 show?

Picture · Medium Challenge link
Answer

7:55

Each clock is 1 hour 35 minutes later.

Which tile belongs in the very centre?

Video · Medium Challenge link
Answer

D

Only D is round, blue AND has a dot.

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.

Full explanation on the blog

What number does the last row show?

Video · Expert Challenge link
Answer

14

Lamps worth 8, 4, 2, 1 fit every row: 2 + 1 = 3, 4 + 1 = 5, 8 + 1 = 9, 4 + 2 = 6. So 8 + 4 + 2 = 14.

Which card completes the grid?

Video · Hard Challenge link
Answer

B

In each row, lines on both cards cancel and the rest stay. Row 3 gives card B.

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