Visual illusions

3 perfect squares.

Source: http://brainden.com

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Mind teaser: Which dot is bigger?

Look carefully at the center dots on both the left and right.

Which dot is bigger??

Answer:

Neither! They are both exactly the same size.

Message in the code

44 33 555 555 666 9 666 777 555 3

What is the message in this code?

Answer:

Pressing these digits in sequence will produce HELLO WORLD on a cell phone (for an SMS text message).

Mind teaser: 4 and 8

It is quite interesting that all numbers can be created by using only two numerals – 4 and 8.

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Mind teaser: Eye illusion

Have you ever noticed a hidden arrow in the FedEx logo? It stands for speed and precision. Check the space between “E” and “x”.

FedEx Express

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.

Explanation:

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

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Eye Illusion!!

See this. The motion is just an eye illusion.

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What Word…

Question

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?

Answer:

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

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