AT 50, Singapore has established itself as a shining example of a well-developed city-state. This can be attributed to two main reasons: its remarkable economy and its world-class education system. But behind the success and prosperity, it will have to overcome serious challenges in the future. Without natural resources and facing an aging population, Singapore must work hard to maintain its position as a global economic power—in a world far more competitive than it was five decades ago. What are the ups and downs of relations between Singapore and Indonesia? Tempo English reports.