I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

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

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What does it mean?