Solution:

L8

Explanation:
To know why, just read the number series upside down and you will find that the numbers are 91, 90, 89, 88, __, 86
So L8 when read upside down reads as 87.

Solution:

The clerk said that every day the password is CHANGED. Changed is the password.

Solution:

Daughter.

Solution:

I am Spice

Explanation:
Spice is hot if you remove first two alphabets then it will become "ice", which is really cold.

Solution:

7, 4, 6, 5, 8

Solution:

She is near the trunk of the tree as shown below.

Solution:

A Question

Solution:

Can be found on the pic below.

Solution:

Flyball should pay Lavy $11 instead of accepting his counter offer as in that case the club will end up paying almost double the amount.

Solution:

The young lady was presented with a bill which belonged to the elderly woman. She had asked the waiter to collect the bill from her daughter.

Solution:

Slumdog Millionare = Slum + Dog + Million + air