How many higher education institutions are there in Singapore?

Could you please tell me, how many institutions of higher education are situated in Singapore? I'm quite curious about the educational landscape of this vibrant country. I understand that Singapore is renowned for its excellent education system, but I'm not quite sure about the exact number of universities and colleges it hosts. Could you enlighten me on this matter? I would appreciate any information you could provide, as it would greatly assist me in understanding the educational offerings of Singapore. Thank you in advance for your assistance.