What is the word or phrase?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

I am white when I am dirty, and black when I am clean. What am I?

What is both possible and impossible at the same time?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

When is the top of a mountain similar to a savings account?