Sign Logic Puzzle

Find a mistake. Think differently!

Find more logic puzzles for all ages in Think Outside the Box collection of puzzles.

The logic puzzle almost everyone gets wrong

This is a very famous logic problem:

“Jack is looking at Anne, but Anne is looking at George. Jack is married, but George is not. Is a married person looking at an unmarried person?

• A: Yes
• B: No
• C: Cannot be determined”

According to the Keith E. Stanovich in Scientific American more than 80 percent of people choose C, which is not the correct answer. The correct answer is A. Why?

This is another example of a similar problem:

There are only two handshakes in a meeting: John shakes hands with a person, this person shakes hands with Anna. Does a man shake hands with a woman in the meeting?

Everyday Geek Questions

What happens once in a minute, twice in a week and once in a year?

I will be X years old in year X2. How old am I?

How many planes of symmetry does a cube have?

“1” costs \$10. “20” costs \$20. How much does “100” cost?

Crazy Puzzle

What number and why?

2015 New MENSA Challenges from A+Click

1) Think Outside the Box!

2) What is the word coiled inside this circle?

A) Animal;  B) Food; C) Country; D) USA State; E) Language