Riddles, one at a time

Lamp Code: Show 22

Which row of lamps shows 22?

Video · Hard Challenge link
Answer

A

16 + 4 + 2 = 22. B is 26, C is 14, D is 21.

Which Ring? Gold Square

Which shape belongs in the middle?

Video · Easy Challenge link
Answer

C

Only the gold square has 4 sides AND is gold.

Five Sheets, One Pile

Which sheet was placed SECOND?

Video · Medium Challenge link
Answer

SHEET E

Order: C, E, A, D, B. Lift them off and see.

Cutting the Log

How long to cut the log into 5 pieces?

Video · Easy Challenge link
Answer

8 minutes

5 pieces need only 4 cuts: 4 × 2 = 8 minutes.

Fewest Tokens: Pay 11

Which tokens pay 11 with the fewest tokens?

Video · Hard Challenge link
Answer

5 + 6

Just 2 tokens. Biggest first, 9 + 1 + 1, needs 3.

Day After Tomorrow

What day is today?

Video · Easy Challenge link
Answer

Wednesday

Two days back from Friday: Thursday, then Wednesday.

Challenge link