5 riddles

“deduction”

Lamp Code: Deduce the Lamps Video
Expert Logic

Lamp Code: Deduce the Lamps

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…

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Genius Numbers

The Four Clues

Three chests: gold, silver and bronze. The treasure is in one of them. Exactly one of these labels is true. Gold: 'The t…

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Hard Logic

Three Chests

Sara, Lina and Huda each have one fruit: an apple, a date and a fig. Sara's fruit has five letters. Lina's fruit is not…

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Easy Logic

The Three Fruits