Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

A pet show was happening in my locality. I went down along with my kids. In that show, I noticed that all except two of the entries were cats. All except two were dogs and all except two were Monkeys.

Can you find out how many of each animals were present in that pet show?

Can you solve below mathematical equation?

2^1234 - 2^1233

What is the difference between a jeweller and a jailer?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?