What does this rebus puzzle means ?

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?

Buy me, smell me or deliver me, I do not change.

Who am I?

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Which letter of the alphabet has the most water?

What goes up but never comes down?