i think only 4 and 7 are true

for eg: 0 belongs to {0} is true but 0 is a subset of {0} is false. Subset is used with Set in LHS while Belongs to is used when an element of a set is in LHS.

for 5. it is saying {0} is a proper subset of {0} which is false

for eg: 0 belongs to {0} is true but 0 is a subset of {0} is false. Subset is used with Set in LHS while Belongs to is used when an element of a set is in LHS.

for 5. it is saying {0} is a proper subset of {0} which is false