5 riddles

“number”

Longest Roman Numeral Video
Genius Numbers

Longest Roman Numeral

Dim or Bright Video
Genius Logic

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…

Text
Genius Numbers

The Four Clues

Five Words Share a Secret Video
Genius Words

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?

Text
Genius Words

The Alphabet Number