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Below are the quick answers to our 2011 AGE Summer Quiz. The detailed solutions can be downloaded here: Easy, Medium, and Hard.

If you're looking for more puzzles, you can check out our previous quizzes: the 2010 Quiz, with solutions here; the 2009 Quiz, with solutions here; and the 2008 Quiz here and here, with solutions here.


E1: 15 minutes.
E2: 3 centimetres.
E3: No.
E4: 127.
E5: 5 kg, 65 kg (excluding Tony's ego) and 45 kg.
E6: All are 4−π square centimetres.
E7: 9.
E8: 5 kilometres per hour.
E9: Place one cup inside another.
E10: More than 1000 people were surveyed.


M1: 50-50 (roughly).
M2: 5.
M3: 17.
M4: No.
M5: Either the fourth statement alone is true, or we have a paradox.
M6: 1350.
M7: 39/55.
M8: 300 (roughly).
M9: Yes.
M10: 14 blocks, and there are 3432 such routes.


H1: 2/3.
H2: About 7.9 cm, and about 12.7 cm.
H3: About 9.8 metres.
H4: 1, 4, 9, 16, 25, 36, 49, 64, 81 and 100.
H5: 80 square centimetres.
H6: Simultaneously light two ends of one fuse, and one end of the other.
H7: Think of the 15 shapes as three groups of 5 shapes.
H8: Group any 38 of the coins together, and turn them over.
H9: The lower right end of the grey plank.
H10: First imagine you have enough fuel in the petrol tank for the whole trip.

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