Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Lady Gaga is pregnant and currently has 6 daughters

1. Dorry 2. Rebeka 3. Michael 4. Faniya 5. Sophia 6. Lavanya

What will she name her next child girl? (Think Logical)

A. Neema B. Tanya C. Tisha D. Jenniffer

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Can you solve below mathematical equation?

2^1234 - 2^1233

I have branches, but no fruit, trunk or leaves. What am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

Complete the table series riddle by finding the number that can replace "??".

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

What does below pictogram mean?