Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Find the value of "?" in the ball picture Riddle below:

One night, a woman receives a call from the police. They tell her that her husband was murdered and that she should come to the crime scene as soon as possible. The woman drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as she reaches the crime scene, the police arrest her and she is convicted of murder. How do the police know she committed the crime?

Complete the table series riddle by finding the number that can replace "??".

Can you divide the below-given shape into four equal and identical pieces?

The more you take me, the more you leave me behind.
Who Am I?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?

Can you find a five letter word that is left with only two letters if one is removed?

What does the below rebus puzzle mean?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes