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Posers and Puzzles

Posers and Puzzles

  1. 23 Jul '07 18:22
    How would you cook an egg in exactly 15 minutes when you didn't have a watch, clock, or timer, but only a 11 minute hour glass and a 7 minute hourglass. It is possible to do this in two turns, not including starting the timers.
  2. Standard member PBE6
    Bananarama
    23 Jul '07 19:16
    Originally posted by mossman05
    How would you cook an egg in exactly 15 minutes when you didn't have a watch, clock, or timer, but only a 11 minute hour glass and a 7 minute hourglass. It is possible to do this in two turns, not including starting the timers.
    Turn over both hourglasses to start. When the 7-minute glass runs out, there will be 4 minutes left in the 11-minute glass. Turn the 11-minute glass over and start cooking the egg, and then turn it over again once the 4 minutes have run out. The total cooking time will be 15 minutes, and the total time will be 22 minutes.
  3. Standard member uzless
    The So Fist
    23 Jul '07 19:24 / 2 edits
    Originally posted by PBE6
    Turn over both hourglasses to start. When the 7-minute glass runs out, there will be 4 minutes left in the 11-minute glass. Turn the 11-minute glass over and start cooking the egg, and then turn it over again once the 4 minutes have run out. The total cooking time will be 15 minutes, and the total time will be 22 minutes.
    turn both glasses over...start the egg. When the 7 minute glass runs out turn the 7 minute glass over. when the 11 minute runs out, turn the 7 minute back over. When the 7 minute runs out, eat your egg..

    7+4+4=15

    you get to eat your egg 7 minutes sooner than pB6's
  4. Standard member Palynka
    Upward Spiral
    23 Jul '07 19:27 / 1 edit
    Originally posted by uzless
    turn both glasses over...start the egg. When the 7 minute glass runs out turn it over. when the 11 minute runs out, turn the 7 minute back over. When the 7 minute runs out, eat your egg..

    7+4+4=15

    you get to eat your egg 7 minutes sooner than pB6's
    EDited out.
  5. 23 Jul '07 19:44
    yeah, both PBE6 and uzless are right
  6. 24 Jul '07 20:41
    I prefer my eggs scrambled.
  7. Subscriber Suzianne
    Misfit Queen
    01 Aug '07 06:32
    Originally posted by mossman05
    How would you cook an egg in exactly 15 minutes when you didn't have a watch, clock, or timer, but only a 11 minute hour glass and a 7 minute hourglass. It is possible to do this in two turns, not including starting the timers.
    Why in hell would you cook an egg for 15 minutes when it's done after three?
  8. Standard member wolfgang59
    Infidel
    01 Aug '07 07:59
    Depends where the egg came from and what temperature the water is.

    Ostrich eggs take up to an hour to soft boil.

    For the BBC Chef Competition 'The Great British Menu' top chef Sat Bains cooked his duck eggs for something like 6 hours!! (The water was kept at a constant 30 Centigrade)
  9. Subscriber Suzianne
    Misfit Queen
    02 Aug '07 21:29
    Originally posted by wolfgang59
    Depends where the egg came from and what temperature the water is.

    Ostrich eggs take up to an hour to soft boil.

    For the BBC Chef Competition 'The Great British Menu' top chef Sat Bains cooked his duck eggs for something like 6 hours!! (The water was kept at a constant 30 Centigrade)
    Hmmm, good point.

    30C?

    That's barely above room temperature, isn't it?
  10. Standard member wolfgang59
    Infidel
    03 Aug '07 06:45
    86F .. maybe it was a bit warmer and maybe even longer. It was certainly abizarre way to boil ann egg - and they were still really soft when they came out.

    Must have tasted delicious tho cos the dish won the competition for best starter and was served to the French President at the British Embassy in Paris.