Puzzle catalog
All 617 Puzzles
Browse every riddle, brain teaser, and logic lab entry in one place with quick hints in each card.
Mini Sudoku
Brain teasers · A 4×4 grid needing every digit once per row and column.
Hint: Once you know the first row, each column only lacks one digit—fill them in one column at a time.
Kakurasu Grid
Brain teasers · Light cells to hit every row and column sum.
Hint: Rows with totals 6 or 5 must include the right-hand columns, while the 3 total is achieved with the left two columns.
Puzzle Party
Logic lab · Three friends each tackle a different puzzle.
Hint: Only one puzzle remains for each friend once you place Mia and apply the remaining constraints.
Story Trail
Logic lab · Follow the clues from paragraph to paragraph.
Hint: One statement is true so deduce order preference.
Symbol Pattern
Brain teasers · Shapes swap positions to keep balance.
Hint: Use elimination: each cell must hold a unique symbol per row/column.
Word Ladder
Riddle lounge · Climb from one word to another, one letter at a time.
Hint: Move toward the target by swapping letters that bring you closer to 'WARM'.
Mirror Keepers
Logic lab · Truth and lies both point you toward safety.
Hint: Let the liar and the truth-teller describe each other.
Hourglass Pulse
Brain teasers · Sand keeps time better than a watch when thought through.
Hint: Watch the moments when each glass finishes and reset carefully.
Weight Balance
Logic lab · Find the odd coin with just two weighings.
Hint: Divide and conquer in threes.
Desert Map
Riddle lounge · It has towns but no houses, rivers but no water, yet it guides travelers everywhere.
Hint: Fold me, trace routes, and every legend still holds true.
Lighthouse Signal
Brain teasers · Light tells stories to sailors if you count the pauses.
Hint: Treat the long flash as dash and each short flash as dot, then match Morse letters before the pause.
Echo Canyon
Riddle lounge · The answer arrives back twice as loud as it began.
Hint: The second voice is a true echo; the third voice must be something else repeating that echo.
Train Signal
Brain teasers · Speeds and distances answer the question without a single number.
Hint: Use ratios of speeds and the remaining gap at the moment the second train starts.
Secret Path
Logic lab · Only the least traveled way keeps you safe.
Hint: Balance the importance of safety and time using the clues provided.
Color Sequence
Brain teasers · Spot the rule guiding every new shade.
Hint: Divide the position by the cycle length.
Clock Hands
Logic lab · Align both hands with minimal adjustment.
Hint: The minute hand catches up to the hour hand every 65/11 minutes.
Letter Lock
Brain teasers · Letters hide the code to the next vault.
Hint: Index letters carefully; count from the start of each word.
Forest Echo
Riddle lounge · Answer returns exactly once after you speak.
Hint: The echo repeats what was asked of it, even if you weren't paying attention the first time.
Midnight Ferry
Riddle lounge · The ferry only crosses when all travelers balance.
Hint: Send the two fastest back-and-forth with the lantern twice.
Staircase Logic
Logic lab · Each guard leaving a staircase gives a clue about who walks beside them.
Hint: Test who must be lying to satisfy each claim.
River Crossing
Brain teasers · Missionaries must keep pace with the cannibals.
Hint: Start by moving two cannibals, then ferry missionaries while keeping the boat balanced.
Riddle Run 016
Riddle lounge · Quick math #016
Hint: Multiply before you subtract.
Teaser Track 017
Brain teasers · Sequence study #017
Hint: Each term rises by 6.
Logic Line 018
Logic lab · Digit drift #018
Hint: Break the number into digits and add them.
Riddle Run 019
Riddle lounge · Quick math #019
Hint: Multiply before you subtract.
Teaser Track 020
Brain teasers · Sequence study #020
Hint: Each term rises by 3.
Logic Line 021
Logic lab · Digit drift #021
Hint: Break the number into digits and add them.
Riddle Run 022
Riddle lounge · Quick math #022
Hint: Multiply before you subtract.
Teaser Track 023
Brain teasers · Sequence study #023
Hint: Each term rises by 6.
Logic Line 024
Logic lab · Digit drift #024
Hint: Break the number into digits and add them.
Riddle Run 025
Riddle lounge · Quick math #025
Hint: Multiply before you subtract.
Teaser Track 026
Brain teasers · Sequence study #026
Hint: Each term rises by 3.
Logic Line 027
Logic lab · Digit drift #027
Hint: Break the number into digits and add them.
Riddle Run 028
Riddle lounge · Quick math #028
Hint: Multiply before you subtract.
Teaser Track 029
Brain teasers · Sequence study #029
Hint: Each term rises by 6.
Logic Line 030
Logic lab · Digit drift #030
Hint: Break the number into digits and add them.
Riddle Run 031
Riddle lounge · Quick math #031
Hint: Multiply before you subtract.
Teaser Track 032
Brain teasers · Sequence study #032
Hint: Each term rises by 3.
Logic Line 033
Logic lab · Digit drift #033
Hint: Break the number into digits and add them.
Riddle Run 034
Riddle lounge · Quick math #034
Hint: Multiply before you subtract.