Riddles, one at a time
Count Every Cube
27
Column heights, row by row: 4+3+3+1 = 11, 3+3+2+1 = 9, 2+2+1 = 5, 1+1 = 2. Total 27, hidden cubes included.
Turn the Crank
The big gear turns clockwise. Which lantern goes UP?
LANTERN C
Each mesh and the crossed belt flip the spin.
Shaded Part: Tilted Square
What fraction of the square is gold?
Find the area of the four corner triangles that are not gold, then take it away.
5/8
The 4 corner triangles are 3 × 1 ÷ 2 each: 6 of 16 squares. Gold is 10/16 = 5/8.
Inside the Loop: The Winding Wall
Which gem is INSIDE the loop?
Count wall crossings on the way to the edge: odd means inside.
C
Gem C is inside; A, B and D sit in pockets that open to the outside.
Two Glass Cards
Slide the two glass cards together. Which number appears?
Imagine the strokes of both cards on one card.
48
Card A's strokes fill the gaps on card B: 4 and 8.
Fewest Tokens: Pay 24
Which tokens pay 24 with the fewest tokens?
Biggest first is not always fewest. A token can be used many times.
6 + 6 + 6 + 6
Just 4 tokens. Biggest first, 15 + 6 + 1 + 1 + 1, needs 5.