Queries to Singapore Immigration & Checkpoint Authority (ICA)

In view of Dr Yaacoob's own revelation that his children will hold dual citizenship up till 18 years old by virtue of the fact that his wife is an American citizen, I have sent in the following queries to ICA:

I have a few questions to ask:

1) Does Singapore allow any citizens to hold multiple citizenship?
2) Is it a chargeable crime for anyone to hold dual or multiple citizenship?
2) Is there any age limit for anyone to hold multiple citizenship?
3) If a child is granted two citizenship (including Singapore citizenship) by virtue of his parents' citizenship status, could he rightfully retain both citizenship at the same time?
4) What is the penalty for holding dual citizenship?
5) Does the Immigration department has the right to revoke the Singapore citizenship of those who are found or caught to have dual or multiple citizenship?

Thank you.

Best Regards,

Goh Meng Seng

After note:

Someone says I should read the Constitution carefully and so I did just that.

Please read the Constitution properly:

(2) A person born outside Singapore shall not be a citizen of Singapore by descent by virtue of clause (1) unless —

(a) his birth is registered in the prescribed manner at the Registry of Citizens or at a diplomatic or consular mission of Singapore within one year, or such longer period as the Government permits, after its occurrence; and

(b) he would not acquire the citizenship of the country in which he was born by reason of his birth in that country where —

(i) in the case of a person born before the date of commencement of section 7 of the Constitution of the Republic of Singapore (Amendment) Act 2004, his father is a citizen of Singapore by registration at the time of his birth; or

(ii) in the case of a person born on or after the date of commencement of section 7 of the Constitution of the Republic of Singapore (Amendment) Act 2004, either his father or mother is a citizen of Singapore by registration at the time of his birth.

By 2(B), the children SHOULD NOT become citizen of Singapore by descent IF they acquire the citizenship of the country of their birth.

This is assuming that they were born in America.

If they are born in Singapore, it makes me wonder why their parents apply American citizenship for their children.