Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

What is the next shape from answers A, B, C, and D figure?

Find the next number in the series.
1 10 24 43 67 ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

What number do you get when you multiply all of the numbers on a telephone's number pad?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

What has no start, end, or centre?