Everyone was surprised by the news.

He is a perfectionist, and his approach to work is very strict.

This programming language is said to be Turing complete.

His performance was perfect and without blemish.

In mathematics, a perfect number refers to a number where the sum of its divisors, excluding the number itself, equals the number.

He is immersed in the study of panmagic squares.

This fish is completely farmed, and no capture is done in the natural environment.

The Transmission Control Protocol is an important element for ensuring the reliability of data communication.

Just as the phrase 'look before you leap' suggests, he prepared everything in advance.

He likes to take a walk in the park at dusk.