Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Can it be possible to build a house that has all its four walls facing towards the South?

There was a competition where the contestants had to hold something. At the end of the event, the winner was a person who had no hands or feet. What was it that the contestants had to hold?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?