1- Paid in US or Sing Dollars?
(CIS pays in Sing dollars)

2- Monthly salary range (15-20 years experience)?
(around 5-7k)

3- Housing allowance for teaching couple ?
($2200 each)

4- Taxes (percentage) that employee must pay to local government?
(Depends on your gross income. Bet on around 11% - Be aware that all benefits such as housing and children's tuition is now taxable income)

5- Annual flight allowance to home of record?
(1 flight over first contract, then yearly - school provides a list of destinations and the estimate from 3 travel agents. You can choose the cash or the ticket. This is usually done in March)

6- Unknown benefits?
(Haha - nope)