Riddles, one at a time
Three Glass Panes
Which colour hides under the ? card?
Video · Medium
Challenge link
Answer
B RED
Magenta stops green, yellow stops blue: red is left.
The Clock in the Water
Top and bottom swap in the water. What time does the real clock show?
Video · Hard
Challenge link
Answer
7:50
Water flips top and bottom: flip the hands back up.
Split 8 Litres
Fewest pours to share it 4 L and 4 L?
Only the 8 L and 5 L jugs can end with 4 L. Use the 3 L jug as a measure.
Video · Genius
Challenge link
Answer
7 pours
8→5, 5→3, 3→8, 5→3, 8→5, 5→3, 3→8: 4 L and 4 L.
A Quarter Turn
Video · Medium
Challenge link
Answer
C
Clockwise, the left column becomes the top row. Card C.
Yesterday's Clue
What day is tomorrow?
Work out yesterday first, then count forward one day at a time.
Video · Medium
Challenge link
Answer
Thursday
Yesterday was Tuesday, so today is Wednesday: tomorrow is Thursday.
Fold, Fold, Punch
Which pattern appears when it is opened?
Video · Hard
Challenge link
Answer
D
Each fold mirrors the holes across its crease.
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