Riddles, one at a time
Square, Circle, X
How many closed areas can you count?
Each corner outside the circle is split by a diagonal.
12
4 slices inside the circle, and each corner is cut in two: 4 + 8 = 12.
The Lamp and the Wall
Which shadow appears on the wall?
C
Each row's tallest stack sets the shadow.
Diamond Window
How many closed areas can you count?
Work outward: circle slices, then the diamond, then the corners.
16
8 corner pieces + 4 pieces round the circle + 4 slices inside it: 16.
Shape Sudoku
Which of the six shapes fits the ? cell?
Start with the box that has the most shapes.
DIAMOND
Solve the whole grid: only a diamond fits there.
Flatbread Pan
A pan holds 2 flatbreads. Each side needs 1 minute. How few minutes can it take to cook 3 flatbreads on both sides?
Do not wait for one flatbread to finish before starting the third.
3 minutes
Minute 1: A and B. Minute 2: A's other side and C. Minute 3: the other sides of B and C.