What is black when you buy it, red when you use it, and gray when you throw it away?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

What 5-letter word typed in all capital letters can be read the same upside down?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Move four matchsticks to the below square to form three squares?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Chef Andrea has to light the kitchen stoves to open her restaurant for the day. There are three stoves in the kitchen: A glass stove, a brick stove, and a wood stove. She only has one match. Which does she light up first?