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

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

Give it food and it will live; give it water and it will die.

What does this say?

ISSUES ISSUES
ISSUES ISSUES
ISSUES ISSUES
ISSUES ISSUES
ISSUES ISSUES

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

What is next number in the pattern below:

131 517 192 123 ?