GENERAL KNOWLEDGE: What is the name given to a wall of a mosque that faces Mecca?

Questions

polyp, fish, worm, plant, crab, mollusk, and plankton in symbiotic relationship, make up what?

which position is not named in abbott and costello's 'who's on first' routine?

what english children's book character had a special love for marmalade?

the ancient mesopotamian civilization was cradled in between which two 'life-giving' rivers?

what movie star was called 'america's sweetheart'?