Using Only Five 5's and any mathematical operator make sum as 37

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

What does does this rebus picture means ?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

When does a USA Potato change its nationality?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98