Four Nines Equal Hundred

Can you make four (4) nines (9) equal 100?




Similar Logic Riddles

You are a cab driver who pools passengers. You pick 3 people from a destination and drop 1 after an hour. 2 people climb aboard at the same time and you drop 3 at the next destination. After some time, you pick 2 passengers only to drop 1 after a short distance where 3 more passengers climb up the cab. You leave the rest of the passengers one by one to their destination and then come back home.

Can you tell the eye color of the cab driver?

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If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

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Which number should replace the question mark?

Triangular Logic

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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?

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You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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In which direction should the missing arrow point?

Arrow Direction

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Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

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Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

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Next Number in the Series,

5, 16, 49, 104, ?

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Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.