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Money & statistics

Kashf

Is This Number Lying?

Catch fabricated reports, misleading charts, too-good-to-be-true investments and deceptive averages. Five quick rounds every day.

How to play

  1. 15 short rounds every day — one for each mode.
  2. 2Pick your answer and check it. Daily answers are checked on the server, so everyone plays fair.
  3. 3Read the explanation: every reveal shows the real numbers behind the trick.
  4. 4Come back tomorrow: a new challenge unlocks at midnight, Tashkent time. Keep your streak going!

Modes · 5 modes

  • Benford’s Detective

    Two lists of invoice amounts. Which one was made up?

  • Chart Crimes

    Is the chart honest or misleading? If misleading — what’s the trick?

  • Too Good To Be True

    An investment offer: legit or a scam?

  • Base Rate Trap

    The test says “positive”. What are the real odds?

  • Average Deception

    Does the “average” in the headline tell the truth?

What you will learn

  • Spot invented numbers with Benford’s law
  • See through chart tricks: truncated axes, cherry-picked ranges, dual axes, area distortion
  • Test investment offers with compound-interest math
  • Avoid the base-rate trap in probability
  • Know when the mean misleads and the median tells the truth