Identification: Need Help Identifying Indoor Tree + Plants

I received these from a friend who was moving away. The tree was fine for a few months. Now it has started getting brown on the leaf tips. Not much has changed in the room. I have posted a few pics of the tree so that I can get the correct identification. Please help me identify these so I can have a better idea of how to take care of them.

Thank You for all your help

 

1=looks like a corn plant (?), a type of dracaena

2=Pothos or devil's ivy

3=looks like an aglaonema (could be wrong though)

Good luck!

 

I agree with rhynno on the id's. The Dracaena looks like a Janet Craig.

 

Dracaena deremensis 'Janet Craig': http://aggie-horticulture.tamu.edu/interiorscape/Dracaena_Janet_Craig.html
Epipremnum aureum: http://hort.ufl.edu/shrubs/EPIAURA.PDF
Aglaonema commutatum 'Emerald Beauty': http://www.urbanext.uiuc.edu/houseplants/types/aglaonema.html

 

the third picture is a Thai Plant/Tree