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
If you were to spell out the numbers, how far would you have to go before encountering the letter A?
One thousa nd (or one hundred a nd one, depending on how you pronounce it ).
One thousa nd (or one hundred a nd one, depending on how you pronounce it ).
What do the following words have in common?
far
Each of these words becomes a new word when the letter ‘e’ is placed after the first letter.
far = fear
Each of these words becomes a new word when the letter ‘e’ is placed after the first letter.
far = fear
Walking down the street one day, I met a woman strolling with her daughter. “What a lovely child,” I remarked. “In fact, I have a younger child as well,” she replied.
What is the probability that both of her children are girls?
1/2 probability. This has been know to cause raging debates and is known as one of the variations of the Boy or Girl paradox . This variation is more straightforward because knowing the position of the child leaves only two possibilities – the other child is a boy or a girl, each of which have a 1/2 probability.
Another variation of this can be found here .
1/2 probability. This has been know to cause raging debates and is known as one of the variations of the Boy or Girl paradox . This variation is more straightforward because knowing the position of the child leaves only two possibilities – the other child is a boy or a girl, each of which have a 1/2 probability.
Another variation of this can be found here .
I climb higher when hot,
Mercury. It rises when encased in a thermometer when it’s hot and mercury poisoning results from inhaling mercury.
Mercury. It rises when encased in a thermometer when it’s hot and mercury poisoning results from inhaling mercury.
I am enjoyed by some, despised by others. Some take me for granted, some treasure me like a gift. I last forever, unless you break me first.
Marriage.
What can you break but not touch?
A promise.
What instrument can make any sound and be heard but not touched or seen?
Your voice.
If 6 bike makers can assemble 9 bikes in a day and a half, how many of them would it take to assemble 270 bikes in 30 days?
9. Each bike maker can assemble one bike a day.
9. Each bike maker can assemble one bike a day.
A man was looking through a window on the 6th floor, opened it, thought for a minute then jumped, passing through the open window, but he was not injured. How was this possible?
He was a window washer and he was entering the building.
He was a window washer and he was entering the building.