Intel Corporation interview questions

Q: Tell me about a time you used data to influence a decision? Q: Describe a situation where you had to handle a large amount of data under a tight deadline?

implement malloc/free function for a memory block each malloc call should return an address of 8 free bytes and free should free the 8 bytes memory - follow up, how the free function in C does not take the length of the memory that was allocated and we want to free it