Dr. UVC Math

DEDUCE ME!

25 Square-Number Riddles · Walk Math Book 1

Riddles you can solve on a walk — no pencil, no calculator, just deduction. Every riddle hides a lesson; every answer comes with The Secret.

DEDUCE
ME!
25 riddles · 5 levels
square numbers only
1 · 4 · 9 · 16 · 25
Walk Math · Book 1 · Squares

Deduce Me! 25 Square-Number Riddles

"I am a square. My digits add to 9. I live between 100 and 200. Who am I?" Twenty-five riddles like that, arranged in five rising levels — from first deductions to genuine detective work. Full answers in the back, and every answer teaches The Secret: the property of square numbers that cracked it.

Ages 8+ · 25 riddles · 5 levels · PDF · print it or read it on the phone mid-walk.

$2.99 Buy now — $2.99 →

Five levels, one skill

  1. Level 1 — First Clues. One property, one answer.
  2. Level 2 — Two Trails. Combine two clues to corner the square.
  3. Level 3 — The Narrowing. Ranges, digit sums, and endings.
  4. Level 4 — Detective Work. Riddles that look impossible until one fact clicks.
  5. Level 5 — The Long Walk. Multi-step deductions worth the whole stroll.

Next in the series

Book 2 — 25 Prime-Number Riddles. Same walk, new suspects: twins, mirrors, Mersennes and one convincing fake. See Book 2 →

Instant download · Personal & single-classroom license · Questions: [email protected]
© 2026 Dr. UVC Universal LLC. This PDF is licensed for personal use and use within a single classroom by the purchasing teacher. You may print copies for your own children or students. You may not redistribute, resell, repost, or include this file or its puzzles in other products. School- or district-wide licensing: [email protected].