If all mammals are warm-blooded, then a dolphin, which is a mammal, must be warm-blooded. Is this statement true or false?

A. TRUE

All squares are rectangles. Is this statement true?

A. TRUE

All mammals are warm-blooded animals. Is this statement true or false?

A. TRUE

All even numbers are divisible by 2. Is this statement true or false?

A. TRUE

All triangles have three sides. Is this statement true or false?

A. TRUE