18 riddles
“number”
Longest Roman Numeral
Mirror Clock: 13:31
Biggest Roman Number
Old Phone Keys: Same as BOOK
Which Ring? Even and Big
Mirror Odometer: 15951
Mirror Odometer: 29992
Old Phone Keys: Biggest Number
Lamp Code: Deduce the Lamps
Dim or Bright
I am a 4-digit number. My first digit is twice my last. My second digit is my first and last added together. All my digi…
The Four Clues
Two Glass Cards
Five Words Share a Secret
I am a number. Spell me out in English and my letters are in perfect alphabetical order. What number am I?
The Alphabet Number
Stack the Stones
I am a three-digit number. My three digits are all different, and they multiply to 6. I am even, and I am less than 200.…
The Even Number
