Puncture a balloon with a knife without lose any air riddle

Puncture a balloon with a knife without lose any air riddle

Riddle with an answer: You must puncture a balloon with a knife. If the balloon loses any air or burst, you loss the game! How did you complete this?

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Correct Answer : 

Use Deflated Balloon!,    didn’t get that hurray! 🙂

Hence there is no air loss will happen.

keep thinking!