Quick Maths Riddle

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?




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John and Jill are madly in love with each other. To remind Jill of his pure love, John wants to send her a ring by post but in their country where burglary is quite prominent, any package that is not locked comes under the risk of being stolen for the contents.

John and Jill possess many padlocks but neither one of them has the other key.

Can you find a way John can send the ring to Jill safely?

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Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

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John and his team plan to rob a safe. They got just one chance to break the code else the local police will be informed. Below are clues:
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I want to fill my bucket using both cold and hot water.
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You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Fill The Grid

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What is the riddle which can be asked all day with a different correct answer each time.

Always New Answer

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In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

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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?

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Only one color, but not one size,
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Present in sun, but not in rain,
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Amazing Facts

Crossword

The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.