Questions

A refers to encapsulation, B refers to coupling

$$\begin{gathered} 23x35x34x?=3174 \\ 3174x10/3 \\ = 10580 \end{gathered}$$

The ASEAN Headquarters is located in Jakarta, Indonesia.

ASEAN is The Association of Southeast Asian Nations is a group of ten Southeast Asian countries. It was formed on 8th August 1967. The 10 countries in ASEAN are Indonesia, Malaysia, Philippines, Singapore, Brunei, Myanmar, Cambodia, Laos, Vietnam and Thailand.

Its main purpose include the acceleration of economic growth, social progress, cultural development among its members, the protection of the peace and stability of the region, and to provide opportunities for member countries to discuss differences peacefully.

When water freezes its density decreases.

Water at ordinary temperatures contracts and increases in density as it is cooled, like most substances. But at about 4°C it reaches a maximum density and then decreases in density as it approaches the freezing point.

The given letters equation states that 

18 H on a GC means 18 Holes on a Golf Course. 

Sikhism was founded by Guru Nanak Dev ji. And the holy city of Sikhs, Amritsar was founded by Guru Ram Das Ji.