Cramer's lightning round: I would hold on ViacomCBS

• It's that time again! "Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

ViacomCBS: "I would hold on to it. I sold it too soon. I got discouraged. That was wrong. Sometimes when you get discouraged, you have to say to yourself, 'let me be better at my job.' I think you're doing it right."

Icahn Enterprise: "I've always felt that it's difficult to understand exactly what Icahn Enterprises owns and therefore I've always felt that perhaps I should stay away because I just don't know enough about what's inside Icahn Enterprise."

Retractable Technologies: "I do not know that company ... to recommend it."

Whirlpool: "I think this stock goes much higher. Whirlpool is a great company. They're on backorder for a lot of the products. I think you should buy the stock."

Pershing Square Tontine: "I've got to hold off."

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