Explanation

Gas: No definite shape or volume – Expands to fill any container.

Example: Oxygen, CO₂.

Solid: Fixed shape and volume (e.g., iron).

Liquid: Fixed volume, no fixed shape (e.g., water).

Explanation

Sum = 4 + 5 + 6 + 8 + 12 = 35

Average = 35 ÷ 5 = 7

Explanation

The sum of two odd integers (e.g., 3 + 5) is always an even number (e.g., 8).

That’s because odd + odd = even.

Explanation

Step 1: Understand the problem

The problem asks for the product of √-2 × √-2.

Step 2: Calculate the product

√-2 × √-2 = (√-1 × √2) × (√-1 × √2)

= (√-1)² × (√2)²

= i² × 2

= -1 × 2

= -2

Explanation

Disjoint sets have no elements in common.

Therefore, their intersection is the null set (∅).

Explanation

The first three even positive integers are: 2, 4, 6

Their average = (2 + 4 + 6) / 3 = 12 / 3 = 4

Explanation

"Twenty Minutes with Mrs. Oakentubb" is a short story written by Frank Arthur.

It is a suspenseful dramatic piece often used in English literature and performance studies.

Explanation

These lines are from the poem "The Character of a Happy Life" by Sir Henry Wotton.

The poem describes the qualities of a truly happy and virtuous person.

Explanation

The Count’s Revenge is a one-act play adapted by J.H. Walsh,

It is based on Alexandre Dumas’ novel The Count of Monte Cristo.

It focuses on themes of revenge, justice, and redemption drawn from Dumas’ original story.

Explanation

He asked if he should take the car.

When changing the direction of a yes/no question like "Shall I...", we use "asked if" in reported speech.

"Shall I" changes to "should he", maintaining the sense of offering or suggestion.