If two's company, and three's a crowd, then whats four and five ?

Why Wine Glass Stem is so long?

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

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

What is the below Rebus indicate?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

What has hands, but can’t clap?

You walk into an old horror house. It has no power or plumbing. Once inside, you see three doors. Each door has a number on it. Behind each door is a way for you to die. Behind door number one, you die by getting eaten by a lion. Behind door number two, you die by getting murdered. Behind door number three, you die by an electric chair. You can’t turn back, so you have to go through a door. Which door do you go through?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"