What is the longest word in the dictionary?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What Does this text mean:

important=important

Different lights make me strange by changing me into different sizes. What am I?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

Solve below popular number sequence
314 159 265 358 979 323 846 ?