Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Count the Triangle in the figure given below:

Who is that with a neck and no head, two arms and no hands? What is it?

Find the number of squares in the below picture

what does the below rebus means?

Solve the puzzle by telling what does below picture means.

What is wrong in the below Picture?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

I can turn polar bears white.
I can make anyone dance.
I can make everyone cry
I can make your hands clap
I can make you thin.
I can make you smile.
I can make you smile

Can you guess the riddle?