Next Number?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?




Similar Riddles

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Make Six Square

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I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

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Find the 8 in the below-given Image.

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Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

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Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

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How many times can you subtract the number two from the number fifty?

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Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

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What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.