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Replace the question mark with the number below given a simple math problem.

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Similar Riddles

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Asked by Neha on 21 Feb 2021


James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

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John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

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Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

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I’m orange, I wear a green hat and I sound like a parrot. What am I?

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I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

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What has 13 hearts but no other organs?

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Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

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Can anyone tell me a word in the English dictionary which has a silent 'z'?

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A man dies of old age on his 25 birthday. How is this possible?

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