Find the missing number

Find the missing number in the sequence below:

Find the missing number




Similar Riddles

Can you write down eight eights so that they add up to one thousand?

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Do You See It?

Do You See It?

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As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

Make the Word TEN

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You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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By using 'because' continuously three times, can you make an English statement ?

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I ask Joseph to pick any 5 cards out of a deck with no Jokers.

He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Jack can't see any of this). I look at the cards and I pick 1 card out and give it back to Joseph. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Jack.

Jack looks at the 4 cards i gave him, and says out loud which card Joseph is holding (suit and number). How?

The solution uses pure logic, not sleight of hand. All Jack needs to know is the order of the cards and what is on their face, nothing more.

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Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

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How can you take 2 from 5 and leave 4?

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There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

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Which word does the below Plexor means ?

Hard Word Plexor

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Artificial Intelligence

Artificial Intelligence has crushed all human records in the puzzle game “2048,” achieving a high score of 839,732 and beating the game in only 973 moves without using any undo.