my baby is five months old.what kind of toys can i give to him?

give colourful toys such as rattles, ones that make noise when shaken. you can also start showing colourful pictures, play peekaboo. take baby for walks and point out objects. most important is to interact with baby... action songs are fun activity. 

don't invest in toys just as yet. your time is the best Roy for now. buy a couple of teethers and one rattle. that should suffice. baby is too young to play with toys on their own.