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?

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

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

Person A is exactly 5 years older than Person B. If the sum of their current ages is 47, what is Person A's current age?

Person A is exactly 3 years older than Person B. If the sum of their current ages is 33, what is Person A's current age?

What is the acute angle formed between the hour hand and the minute hand of a standard analog clock at exactly 11:15?