Premise 1: All trees are cats. Premise 2: All cats are cars. Which conclusion definitely follows?

Premise 1: All phones are cups. Premise 2: All cups are books. Which conclusion definitely follows?

Premise 1: No dogs are rocks. Premise 2: All phones are dogs. Which conclusion definitely follows?

Premise 1: Some trees are books. Premise 2: All books are birds. Which conclusion definitely follows?

Premise 1: No trees are cups. Premise 2: All cats are trees. Which conclusion definitely follows?

Premise 1: Some stars are desks. Premise 2: All desks are cars. Which conclusion definitely follows?

What is the acute angle formed between the hour hand and the minute hand of a standard analog clock at exactly 6:40?