Riddles, one at a time
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.
Video · Hard
Challenge link
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 Trapped Gem
Which gem is INSIDE the loop?
Count wall crossings on the way to the edge: odd means inside.
Video · Hard
Challenge link
B
Gem B is inside; A, C and D sit in pockets that open to the outside.
Hands Apart: 6:30
What is the SMALLER angle between the hands?
The hour hand is not on the 6 at 6:30.
Video · Medium
Challenge link
15°
At 6:30 the hour hand is halfway from 6 to 7: 15° from the minute hand.
Which Ring? Even and Big
Video · Easy
Challenge link
D
64 is even AND more than 50. 38 is too small; 47 and 75 are odd.
Word Ladder: Ship to Slow
Video · Medium
Challenge link
SHOW
SHOP to SHOW changes P to W; SHOW to SNOW changes H to N.