Questions

The largest district in Bangladesh is Rangamati. And smallest district is Narayangunj.

Jharia, a town in the sate Jharkand in India is famous for coal mines and resources. It plays an important role in the economy and development of the state.

The study or scientific study of the structure, development, and abnormalities of the teeth is called Odontology. The science that studies teeth and their surrounding tissues, especially the prevention and cure of their diseases is called Dentology.
 

A Book always has Pages. Without pages it can't be called as a book. A book can be either with or without preface, text or index but it can't be without a page.

Hence, A Book always has page.

Light travels fastest in Vacuum. The fastest thing in the whole universe is the speed of light in a vacuum like outer space. It is about 2.99 x 10⁸ m/s. 

Assassins (from Hashishin)

The current infection control guidelines from the CDC (The Centers for Disease Control and Prevention) are called Standard or Universal Precautions.