Age

Question
QUESTION: What is the normal age of a lizard?

ANSWER: Not enough information.  Which lizard?  There are 10's of thousands.

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QUESTION: Normal white or black.. which use to find in house

ANSWER: Asmi, I'm about 10,000 kilometers from you... Normal means nothing to me.

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QUESTION: Sorry for the confusion my ques is, Normal age of a lizard, the lizard which use to find in houses??

Answer
Asmi, maybe I'm not making myself clear.  There is no such thing as a "normal lizard."  I live in the US and in and around my house alone there are 5 types of lizards running around.  I have no idea which lizard(s) is/are running around your house.  Further, I don't know if you mean what is their average age at present or how long do they live.