Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

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?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

What goes through cities and fields, but never moves?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

The answer I give is yes, but what I mean is no. What was the question?

What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?