Malaysian Citizen moving to Singapore

[fizz85]

Hello everyone. I am a Malaysian citizen and planning to move and search for a better career opportunities in Singapore this coming February. I only hold a secondary certificate ( SPM level ) but have at least 8 years of working experience in admin and customer service field here in Malaysia.
I would appreciate if anyone would help me with my questions below:-

1) What do i tell to the Singapore Immigration about my stay and job search in Singapore? ( obviously i have to state how long will i be staying on the white card )
2) Is it possible for me to rent a common room with my foreign documentations?
3) Should i apply a short term visit pass at MOM's website online first?