What word is always spelled wrong?

This word is "wrong". It is always written in the wrong way. The effect of this joke task is that in it the word "wrong" is used in two different senses.

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 How many months a year have 28 days?

All months

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 How fast should the dog run, so as not to hear the sound of a frying pan tied to its tail?

The dog needs to stand still

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 The dog was tied to a ten-meter rope and walked a straight two hundred meters. How did she manage it?

Her rope was not tied to anything

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 How to jump off a ten-meter staircase and not get hurt?

It is necessary to jump from the bottom step

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What can you see with your eyes closed?

Dreams

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What is the fire does not burn and does not sink in the water?

Ice

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Whom do Australians call sea wasp?

Medusa

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What do you do when you see a green little man?

Cross the street (this is a picture of a green traffic light)

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Moscow used to be called white stone. And what city was called black?

Chernigov