Logical Number in Center

What number should come in place of the question mark below?

Logical Number in Center




Similar Riddles

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

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A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

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Can you spot the hidden girl in the picture below?

Spot the Girl

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I do not exist on Monday and Friday.
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This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Brick Optical Illusion

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I’m tall when I’m young, and I’m short when I’m old. What am I?

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There was a greenhouse.
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Why 1729 is a magic number? Answer Logically.

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There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

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

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.