Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

I have teeth but i don't bite. Who Am I ?

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

what's the probability of getting a king or a queen from a pack of 52 cards?

Why Aeroplane windows are round?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Identify the 10 differences between the two given pictures.

Find the 8 in the below-given Image.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"