Suppose you're on a game show, and you're given the choice of
three doors:
Behind one door is a car; behind the others, goats. You pick a door, say
No. 1, and the host, who knows what's behind the other doors, opens another door, say No. 3, which has a goat. He then says to you, 'Do you want to pick door No. 2?'
Is it to your advantage to take the switch?"
There are 5 traditional married couples at a party, one of which
is the host and hostess. There is some shaking of hands, with no person shaking his or her
spouse's hand. Nobody shakes his own hand, nor anybody's hand more than once. Upon asking the other 9 people how many hands they shook, the host
gets 9 different answers.
How many hands did the host shake and how many hands did the hostess shake?
Here's a really good one I dug up out of the
archives:
This is a quiz that was written by Albert Einstein. 85% of the population does
not possess the logical thinking ability to solve it. Are you among the 15%?
Facts:
1. There are 5 houses of 5 different colors arranged in a straight row.
2. Within each house lives a different owner, all of a different nationality.
3. Each of the 5 different owners drinks a different beverage, smoke a different
brand of cigar, and keep a different type of pet.
4. You are facing the row of houses and read left to righht.
Hints:
1. The Brit lives in a red house.
2. The Swede keeps dogs as pets.
3. The Dane drinks tea.
4. The green house is on the left of the white house.
5. The green house owner drinks coffee.
6. The owner who smokes Pall Mall keeps birds.
7. The owner of the yellow house smokes Dunhill.
8. The owner living in the house right in the middle drinks milk.
9. The Norwegian lives in the first house.
10. The owner who smokes Blend lives next to the one who keeps cats.
11. The owner who keeps horses lives next to the one who smokes Dunhill.
12. The owner who smokes Blue Master drinks beer.
13. The German smokes Prince.
14. The Norwegian lives next to the blue house.
15. The man who smokes Blend has a neighbor who drinks water.
The question:
Who has fish for pets?
This is not a trick question!! The answer can be reached using logic and
deductive reasoning.