Which of the ffg pairs of outcomes is not mutually exclusive

Drawing a single card from a deck and gettting a black card and a heart
Getting a five hand card with two queens and 3 blacks
Rolling two dice and getting a sum of 7 and pairs
Flipping a sinlge coin and getting a heads and tails

If two things are mutually exclusive, it means they cannot happen at the same time. In maths we say that there is not intersection, or in symbols;

P(A \cap B) = 0

where A and B are events.