All Puzzles

Make 100 using six 9. You can use addition, division and fraction.
View SolutionSubmit Solution 1,259.9K views
 1 answers
 0 votes

One day a robber got into a bank to rob its vault. However, he noticed that the vault had an unusual lock. So he hid behind a desk and watched how others got in. He noticed that the manager came up to the vault door and pressed a button. The lock read out a number in response to which the manager said a number of his own. On doing so the door opened. This happened twice. The first time the lock said 12 and the manager responded with 6. The second time the lock said 6 and the manager responded with 3. Believing that now he knew all that he needed to know, the robber approached the door. The door said 10 and in reply the robber entered 5. It set of the alarm and the robber was apprehended.
What number do you think the robber should have said?
View SolutionSubmit Solution 1,260.4K views
 1 answers
 0 votes

Remove 6 liters of oil from a large oil container using only two mugs of 9 liter and 4 liter respectively.
View SolutionSubmit Solution 1,259.1K views
 1 answers
 0 votes

 1,260.4K views
 1 answers
 0 votes

Gracie went for a morning walk and met her old friend Suzie and her daughter Jennie after a long time. Gracie asked Suzie how old is Jennie to which Jennie replied “In two years I will be twice as old as I was three years ago”. How old is Jennie?
View SolutionSubmit Solution 1,260.3K views
 1 answers
 0 votes

There is a unique number of ten digits, for which the following holds
 all digits from 0 up to 9 occur exactly once in the number;
 the first digit is divisible by 1;
 the number formed by the first two digits is divisible by 2;
 the number formed by the first three digits is divisible by 3;
 the number formed by the first four digits is divisible by 4;
 the number formed by the first five digits is divisible by 5;
 the number formed by the first six digits is divisible by 6;
 the number formed by the first seven digits is divisible by 7;
 the number formed by the first eight digits is divisible by 8;
 the number formed by the first nine digits is divisible by 9;
 the number formed by the ten digits is divisible by 10.
View SolutionSubmit Solution 1,259.9K views
 1 answers
 0 votes