A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?
Can you find a number that lies one third of the distance between 1/3 and 2/3?
A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...
and the resulting number consist of only one digit.
Can you identify the number ?
If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?
There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.
What is the smallest number that stands true on the statement?
In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.
Other fruits like watermelons or mango had different machines as they were expensive.
A man successfully buys watermelons at the price of cherries. How?
A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)
How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?
Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?
Why is the Hole below a Lock?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.
Can this even be possible?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki