Tuesday, December 27, 2011

Open the minimum number of valves!

In order to water this flower, open the minimum number of valves to allow water to flow from the hydrant to the hose:

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Answer:


Sunday, December 25, 2011

How Many Minutes

How many minutes is it before 12 noon if 48 minutes ago it was twice as many minutes past 10 a.m.?

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Answer: 24
Solution:

12:00 - 0:x - 0:48 = 10:(2*x)
11:12 - 0:x = 10:(2*x)
1:12 - 0:x = 0:2*x
1:12 = 0:3*x
60+12 = 3*x
x = 24

The question of this puzzle is quoted from the following reference: 1000 IQ Puzzles



Replace the Question Mark

In one minute, say what number should replace the question mark!






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Answer: 8

10 * 8 = ? * (2 * 5)
10 * 8 = 8 * (2 * 5)

Saturday, December 24, 2011

Two Synonym Words

In the following puzzle, each square contains the letters of a 9-letter word. Identify the two words which are synonyms!

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Answer:

stipulate & condition