Solution:

In a clock.

Solution:

1 2 and 3

Explanation:
1 + 2 + 3 = 1 * 2 * 3 = 6

Solution:

You cant find any word in the English language that rhymes with these words (Purple Orange and Silver).

Solution:

The conversation taking place in DST when there is a gap of approx 1hour in one of the city.

Explanation:
Daylight Saving Time (DST) is the practice of setting the clocks forward 1 hour from the standard time during the summer months, and back again in the fall, in order to make better use of natural daylight.
Therefore in case of DST, one city has time 1:30 and another city also can have time 1:30 as in one of them DST has applied and in other it's not.

Solution:

Milk.

Explanation:
The cream comes to the surface and hence milk is heavier than cream.

Solution:

In a clock.

Explanation:
time is 12 hour 10 minutes (here by looking at 2, we say 10 minutes)

Solution:

8! minutes

Explanation:
28 days x 24 hours x 60 minutes = 40,320 = 8! minutes.

Solution:

A Leak.

Solution:

Mount Rushmore (4 men faces carved into Mount Rushmore)

Solution:

Discovered or not, it's always biggest ocean in the world.