What do you answer even though it never asks you questions?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Find the next number in the following series:
6, 14, 26, 98, __?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

There is something which is always coming but never arrives?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

When 99 is considered higher than 100?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

What is both possible and impossible at the same time?