Every week, you will find a quiz in this page on a variety of subjects. There are no prizes for answering correctly nor whiplashes for incorrect answers. That need not hold you back from testing your knowledge. Go ahead and have fun. If you have interesting puzzles, teasers, questions on any subject and you want them to be featured here, please e-mail them to me at webmaster@mohaniyer.com. I will acknowledge your contributions. I have also arranged chronologically all the previous weeks' questions in an archive.

This weeks quiz has 5 math puzzles by the human calculator, Shakuntala Devi.

1. Four brothers average height is 74 in., and the difference in height amongst the first three men is two inches. The difference between the third and the fourth man is six inches. How tall is each brother?

2. 50 min. ago it was 4 times as many minutes past 3 o'clock, how many minutes is it to six o'clock?

3. Each boy in a certain family has as many brothers as sisters, but each girl has twice as many brothers as sisters?

4. Two identical trains start at the equator travelling around the world on different tracks. They start together and run at the same speed, which one would wear out its wheel treads first?

5. I drove across the Golden Gate bridge at 40 mph one way but because eof traffic could only manage 25 mph on the way back. What was my average speed for the round trip?

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