Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

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

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

Find out the missing number in the picture attached:

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Replace the question mark with the correct number in the below-given picture?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"