I havent read Bible for ages. Today someone sent me one as a Val gift. I opened and began to read I notice when Jesus and Lazarus died, they were wrapped with clothes and buried. That's Islam way of buring the dead. Why do christians bury people in caskets/coffins?

You are really Dumb

Jesus put on garment why did you put on trouser.

why do people in the east burn their dead except Muslims, are Muslims not from the East?

Op to answer your question, burying the dead with casket isn't peculiar to Christians. It is a personal thing hence you can bury the dead whatever way you choose to. The Bible didn't specify Christians the way to bury the dead.

Our Creator is not a god of the dead, He is the God of the living.
Those who are said to be dead, passing through a curtain into another world are alife - yet human do not know but weeps!

Human wastes and traditions made them bury the dead the way they do.