What is the longest word you can find using only the letters AIOTS (each letter can be used any number of times)?
Tattooists, which has 10 letters.
Tattooists, which has 10 letters.
When a bird flies over the ocean a part of the body touches the water but doesn’t get wet. What part is it?
The shadow
What lives in the corner but travels the world?
A postage stamp.
Where will you find roads without cars, forests without trees and cities without houses?
On a map.
I can never be stolen from you.
What am I?
Knowledge.
Why are these letters grouped in this particular order?
1) DFGHLPRU
The letters are grouped by the number of U.S. States beginning with that letter. M and N are tied for each starting eight states.
The letters are grouped by the number of U.S. States beginning with that letter. M and N are tied for each starting eight states.
If you’re given a number, subtract 1, then 2 from the result, then 3 from that result and so on until you reach 0 or a negative number.
For example, if you’re given 15:
15 – 1 = 14
Which of these numbers will finish exactly at zero?
102 103 104 105 106
105
105 – 1 = 104
105
105 – 1 = 104
They are two sisters. One gives birth to the other, who in turn gives birth to the first. What are the two sisters?
Night and day. When night is over, the day breaks, and when the day ends, night is born anew.
Night and day. When night is over, the day breaks, and when the day ends, night is born anew.
You are in a room with no windows, doors or any exit. The only items are a mirror and a table. How do you escape?
Hint: This is not a typical brain teaser.
Look in the mirror, then at the wall and back at the mirror to see what you saw. Use the saw to cut the table in half and join the two halves to make a whole. Put the “hole” on the wall and climb out.
I know, it’s lame. I like to have brain teasers that you can realistically guess, but this one’s so popular, I feel an obligation to include it.
Look in the mirror, then at the wall and back at the mirror to see what you saw. Use the saw to cut the table in half and join the two halves to make a whole. Put the “hole” on the wall and climb out.
I know, it’s lame. I like to have brain teasers that you can realistically guess, but this one’s so popular, I feel an obligation to include it.
A couple has two children. At least one of them is a boy. Assuming the probability of having a boy or girl is 50%, what is the probability that both children are boys?
If you answered 1/2, you’re not without comrades, but the generally accepted answer by statisticians (though not without debate) is 1/3. This is because there are four possible combinations: boy-boy, boy-girl, girl-boy and girl-girl. Since we are told one of the children is a boy (but we don’t know if it’s the first or second child), we can rule out the girl-girl combination, leaving three remaining options. Only one out of 3 is boy-boy, so we get a 1/3 chance.
This is a well-known problem known as the Boy or Girl paradox . The other variation is this brain teaser .
If you answered 1/2, you’re not without comrades, but the generally accepted answer by statisticians (though not without debate) is 1/3. This is because there are four possible combinations: boy-boy, boy-girl, girl-boy and girl-girl. Since we are told one of the children is a boy (but we don’t know if it’s the first or second child), we can rule out the girl-girl combination, leaving three remaining options. Only one out of 3 is boy-boy, so we get a 1/3 chance.
This is a well-known problem known as the Boy or Girl paradox . The other variation is this brain teaser .