What occurs twice in a week, once in a year but never in a day?

Find the 8 in the below-given Image.

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Which tank will fill first?

Can you place six X (crosses) in below board without making three in a row in any way ?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

Imagine you are in a room with no windows or doors. How will you get out?