My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

Even though he is a doctor, he doesn't take care of his own health. It's truly a case of 'physician, heal thyself'.

Natural numbers start from 0 and continue as 1, 2, 3, 4, 5, 6, 7, 8, 9.

What should I do to find the root number of this equation?

The order of this graph is 5.

I like solving sudoku puzzles every day.

The Reynolds number is an important concept in fluid dynamics.

An irrational number is a number that cannot be expressed as a fraction.