Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?
? : 3839 :: 11 : 1209
In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?
Can you arrange four 9's and use at most 2 math symbols, to make the total 100?
While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.
How will John escape?
How can you leave a room with two legs and return with six legs?
How much will a 38Â° angle measure when looked at under a microscope that magnifies ten times?
A father's child, a mother's child, yet no one's son.
Who am I?
Two old friends, Jack and Jill, meet after a long time, and discussing as:
Jack: Hey, how are you, man?
Bill: Not bad, got married and I have three kids now.
Jack: That's awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool..But I still don't know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh, now I get it.
How old are Bill's kids?
How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?
You have two jars of chocolates labelled as P and Q. If you move one chocolate from P to Q, the number of chocolates on B will become twice the number of chocolates in A. If you move one chocolate from Q to P, the number of chocolates in both the jars will become equal.
Can you find out how many chocolates are there in P and Q respectively?
What does below science rebus mean?
Ag Ag Ag
Ag SPOON Ag
Ag Ag Ag
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.