Mind Teaser: Expand your mind

The 18…

I predict that your result will be 18

  • Think of a number.
  • Add 7 to it.
  • Subtract 2.
  • Subtract your original number.
  • Multiply by 4.
  • Subtract 2.


This problem gives the illusion of guessing an unknown number, but the unknown has been cancelled mathematically.
( X + 7 – 2 – X ) × 4 – 2 = 18


Eye Illusion!!

See this. The motion is just an eye illusion.


What Word…


There is a common English word that is nine letters long. Each time you remove a letter from it, it still remains an English word – from nine letters right down to a single letter. What is the original word, and what are the words that it becomes after removing one letter at a time?


The base word is Startling – starting – staring – string – sting – sing – sin – in – I

Categories Mind Teaser

1 thought on “Mind Teaser: Expand your mind

  1. Hello! This post couldn’t be written any better! Reading through this post reminds me of my previous room mate! He always kept chatting about this. I will forward this post to him. Pretty sure he will have a good read. Thanks for sharing!

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