Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.
A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.
How did the man in the booth know to give him two tickets without even looking at him?
The more of this there is, the less you see. What is it?
There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?
I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?
Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?
You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.
Would you want to play first or second?
PS: The sum should be exactly 15.
4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?
Which city is three-fifths chick two third cat and 50% goat?
Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?
Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.