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Riddles, one at a time

What day will it be 100 days from today?

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Answer

Monday

100 = 14 weeks (98 days) + 2 days. Saturday + 2 = Monday.

Which gate leads to the fountain?

Video · Easy Challenge link
Answer

GATE C

Every other gate is sealed off by a stone wall.

Two candles of the same height are lit together and burn at a steady rate. A lasts 4 hours, B lasts 6 hours. After how many hours is B twice as tall as A?

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Answer

3 hours

After 3 h, A has 1/4 left and B has 1/2 left: twice.

Which shape belongs in the middle?

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Answer

C

Only the gold square has 4 sides AND is gold.

One Letter Is Hiding

Which letter is hidden in the mosaic?

Picture · Medium Challenge link
Answer

K

Its tiles have 4 points or sides, not 8.

Symbols keep their direction. Which cube folds from this net?

Video · Medium Challenge link
Answer

B

Folded up, star, ring and half-square sit just like B.

Full explanation on the blog

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