The secret to longevity is having healthy internal organs.

This castle was constructed in the 16th century.

He is planning to construct a new house.

In this experiment, we will measure the critical Reynolds number.

I am currently reading Numbers.

What is the value below this decimal point?

She is a famous numerologist, and many people seek her advice.

Please teach me how to find the greatest common divisor.

Mountain with various kinds of trees.

The police contacted the victim's family.