There is coffee shop, hawker food center, ntuc fairprice, sheng siong that sell drinks at reasonable price. You shop at 7-11 and other convenient stalls that charge a premium. Do your research before you complain. The ability to speak does not make one smarter.
Hello visitors to Singapore, please do not use the prices at convenience stores as the standard benchmark cost of living as the latter charged much higher than those at supermarkets such as FairPrice, Sheng Siong, Giant, Prime etc !
No, Singapore was part of Johor Sultanate before the British came and later took over the place and made it part of their Crown Colony together with Penang and Malacca, administered differently from the rest of Malay Pennisula which were just British colony. A Crown Colony is one that is completely under the control of the crown with no locally elected officials. Today there are still graves of Johor sultans buried on Fort Canning Hill in Singapore and as many as 13 of their Istanas (palaces) once existed in Singapore.