I started my trip from delhi to cebu flight (Singapore airlines) with layover in Singapore for 15 hours, so i got the multi entry visa of Singapore and planned to explore Singapore for night, and utilize the time best possible,
After smooth immigration as it was my first international trip i was little worried,
I took MRT from airport to Bayfront bay station,
There are no complexity, you will find someone there where you can get change (money) if needed, When i opened my medicine and opened water bottle to take a sip, a person sitting beside me stopped me and told me that it is S$5000 fine for drinking or eating anything in Singapore metro or bus, keep that in mind it was more than total budget for 3 persons on our 10 day trip,
Then i reached to the Marina Bay Sands for musical fountain show which is free, last for 15 min and gives an awesome experience, then i walked to gardens by the bay which was Some piece of man made art, after that i walked to Singapore's famous landmark merlion park. The Merlion is a mythical creature with a lion's head and the body of a fish that is widely used as a mascot and national personification of Singapore, after that i took bus for orchid tower to explore some night life, and from there we took a cab back to airport, explored every Terminal of changi airport, which was a very good experience by it self, lots of Gardens, movie hall, gaming zones, outdoor space, leg massager (and all this was for free you can have lots of more things to do if you are paying) this airport have everything you need.