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?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

What has many keys but can’t open a single lock?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

If 1+9+8=1, what is 2+8+9?