I'm going to put some brain-teasers up here occasionally, for you all to chew on. It's healthy to get movement in your mind, and I find puzzles and brain teasers an effective and entertaining way to do that.

Enjoy!!

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Teaser #1 Solution:


No takers!

Alice passed Math and English, Bob passed everything, and Carol passed only English.

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They won't be "apart" when they "meet".

Teaser #3:


Three business executives meet for lunch in a restaurant.

At the close of their lunch, they figure the bill be roughly $30, so they all toss in $10 to cover the bill.

When the bill actually comes, it is $25. Since the $25 bill is not divisible by three, the three executives demonstrate what absolute tightwads they are, by each taking a dollar back, and leaving the two extra dollars for the poor waitress who took care of them.

Since each tightwad executive paid $9 for their lunch, and nine times three is 27, when we add in the two for the waitress, we have 29 ... where did the other dollar go?

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Yep. Brain teasers and riddles are often just mis-worded in an effort to get us thinking about the wrong thing. It's like a magician who trys to get you to look at something else so you don't see his or her slight of hand.

In this case, the question is worded improperly. The error is found in that the equation explaining the situation is misleading. While it is true that 9(3) + 2 is not equal to 30, it is true that 9(3) - 2 = 25, which is the correct way of looking at things, and I'm pretty sure that's what VBuys was saying.

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The question makes no sense to me. It's like having already completed a race, then trying to change the results of the race by doing another lap a little faster.

Life doesn't work that way, at least not for me. Sorry.

You'll never get there from here.

Although, if you did go a billion zillion gachillion (gachillion?) miles per hour on the second lap, you'd bring the average speed really close to 60 mph, something like 59.9999999999999999999999999999999999999999999999999999 (plus a lot more 9's) mph. But still not quite 60 mph.

Anyway, your 90 mph answer gets you a average of 45 mph. That's 2 minutes and 40 seconds to go 2 miles.

120 mph on the second lap would give you an average of 48 mph. That's 2 minutes and 30 seconds to go 2 miles

180 mph would make it 51.5 mph. That's 2 minutes and 20 seconds to go 2 miles

240 mph... 53.33 mph. That's 2 minutes and 15 seconds to go 2 miles

480 mph... 55.385 mph. That's 2 minutes and 7.5 seconds to go 2 miles

And so on, and so on. But you're never going to average 60 mph, because you must get that done in two minutes over a two mile length of track, and you already spent your two minutes on the first lap.

Teaser #5:


A bookworm is on Page 1 of Volume 1 of a two volume dictionary. He decides he wants to eat his way to the last page of Volume 2 of the set. The total thickness of the pages of each volume is two inches for a combined total of four inches, and the binding of each volume is 1/8th of an inch thick.

How far did the bookworm go?

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Think time travel!