You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

What is both possible and impossible at the same time?

O_er_t_o_

Complete the missing letters of the given word.

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

With the help clues provided in the image, can you find the 5 digit key?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Which letter of the alphabet has the most water?