Riddles, one at a time
Flip-Flop Gates
Gates start as shown and flip after each box. Where does box 3 land?
Video · Hard
Challenge link
BIN C
After boxes 1 and 2, box 3 goes left, right, right.
Fence Posts
A straight 15 m fence has a post every 3 m, with one at each end. How many posts are there?
Count the gaps first, then the posts.
Video · Easy
Challenge link
6
15 ÷ 3 = 5 gaps, and 5 gaps need 6 posts.
Open the Tap
Valves stay as shown. Which jar fills with water?
Video · Medium
Challenge link
JAR C
Every other route ends at a closed valve.
Square, Circle, X
How many closed areas can you count?
Each corner outside the circle is split by a diagonal.
Video · Hard
Challenge link
12
4 slices inside the circle, and each corner is cut in two: 4 + 8 = 12.
The Brass Grilles
Read the holes row by row. Which grille shows a real word, and what is it?
Picture · Hard
Challenge link
B: MAPLE
Read the holes row by row, left to right.
One Word, Three Pairs
Picture · Medium
Challenge link
WORK
Firework, workshop, homework, workout, network, workbook.