1. The best of the text is to describe the variety of penguins and their unique physical features.

2. The purpose of the text is to inform the reader about the different types of penguins and the unique physical features of each type.

3. The underlined word "torpedo-shaped" in the first paragraph means cylindrical or having a rounded, streamlined shape like a torpedo.

4. The main idea of paragraph 2 is to describe the different physical features of five different types of penguins, such as the crest of yellow feathers, blushes of orange and yellow, bright yellow eyebrows, a crest of yellow feathers on its head, and a light yellow mask around the eyes.

5.Five kinds of penguins based on the text are:

Crested penguins

Emperor and King penguins

Foirdland, Royal, Snares and Rock Hopper penguins

Macaroni penguin

Yellow-eyed penguin