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02 September 2011

Mind Games 10

In Mind Games 10, we get a little bit obsessive about breakfast, and then focus our attention on an unusual game of basketball.

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In Mind Games 10, we get a little bit obsessive about breakfast, and then focus our attention on an unusual game of basketball.
 

28. Hard-boiled

You are a butler with a very discerning master, who insists on having his breakfast egg boiled for EXACTLY nine minutes. If it’s over- or under-cooked by mere seconds, he’ll notice and become enraged.

Your master takes you with him on a holiday to a remote island where there are no clocks, watches, or any other way of telling the time – except for two old hourglasses. One hourglass takes four minutes for the sand to run through it, the other takes seven minutes.

You also have a pot of water, a stove and of course an egg. Using only this equipment, how will you manage to cook the egg to your master’s satisfaction?

See the answer.

29. Eye on the ball
This is a test of visual cognition and attention. In this short video, you’ll see two teams – one dressed in black, one in white – playing basketball. Your task is to count the number of times the WHITE-shirted team passes the ball. Concentrate!

See the explanation.

More Mind Games

Do you have a great brain teaser? Please send it in; we'll choose the best for inclusion in future Mind Games.

- Olivia Rose-Innes and Senora Sine Thirteen, Health24, August 2011

References:
Mack, A.; Rock, I. (1998) Inattentional blindness
Simons, D.J.; Chabris, C.F. (1999). "Gorillas in our midst: sustained inattentional blindness for dynamic events". Perception 28 (9)
Simons Lab

 
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