Just measured, I got the same results 4.94V on all the adc pins. And the LM35's working fine, showing 0.27V.
Probably I'll build it in bread board and test again.
Thanks for ur patient guidance ericgibbs. Appreciate that.
By the way, do you have any suggestion of ADC's IC if I want to use an ADC module with PIC instead of an PIC with built in ADC. I am doing my final year project which I only use a PIC and few LM35DZ without any circuit. I don't think I can score any mark from here. So I'm thinking of using a PIC with external ADC module and perhaps a keypad to lock/unlock the system.