can inheritance be implemented in C. if yes how

what are threads in java. diff b/w sleep and wait

what is anonymous class or structure

u have been given an array. u don't know it's size. find the avg of its elements in Java

implement LL in Java

different types of exception. diff b/w exception and error

what are early binding and late binding

polymorphism and inheritance in java

puzzle two wires of diff dimensions have been given. both of them gets completely combusted in 1 hour. you are in a pitch dark room with such two wires and a box of matches. you have to come out of the room in 45 minutes. [you cannot count seconds in your mind or else you cannot visually determine the halfway of the wires given neither do you have anything else other than a box of matches and those 2 wires]