H1B, H4 Visa

I had my PA for H1 B along with my Wife in Chennai on 23rd May 2011. Following are the questions/answers at the US-consulate

Question: Who is your Client Sir?
Answer: XYZ


Question: What to they(XYZ) do Sir?
Answer: XYZA is a AABBCCDDEEFF,providing 1122334455


Question: How long are you in TTT Sir?
Answer: 6 Years and 6 Months

Question: Which Place are you travelling Sir?
Answer: aaaaaaaCITY, bbbbSTATE
 


Question: What is your role Sir?
Answer: qqqqqqqqq
 
 
Question: What will you be doing there?
Answer: <<<<ANSWERED>>>>



Questions to my Wife:
 
Question: What is your marriage Date?

Answer: <<<<ANSWERED>>>>
 
 
Question: Where did it happen?

Answer: Chennai
 
  
Question: Where in Chennai?

Answer: <<<<ANSWERED>>>>
 
 
Question: Oh Tambaram!!! What is your Age?

Answer: 28 Years
 
To me again:
 
Question: What is your Age?

Answer: 29 Years
 
 
Visa officer : Very good Sir!! Your Visa is Approved. You'll be receiving your Passport within a week.

Suggestions : What ever we answer, we should be bold and confident. Even if we have doubt in an answer, our face/the way we answer should not revel it out.