1) Queensway and Commonwealth Avenue (this was reputedly the largest roundabout in Singapore)
Now for some harder ones:
6) Macpherson Road and Serangoon Road
But leave the toughest to the last.
8) Lornie Road and Thomson Road, just in front of the entrance to MacRitchie Reservoir.
PS – My older readers may want to contribute some questions so that I can compile them for future quizzes. Please email them to me at: cslam(at)hoshin(dot)com(dot)sg. (Someone told me you shouldn’t type your actual email address as those pesky, ‘wuliao’ spammers have software to harvest your email address and then …… you know the rest)