Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Can you find the missing piece of the Porsche?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

Can you count the number of quadrilaterals in the picture below?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

What occurs twice in a week, once in a year but never in a day?

If Japan and Panama decided to merge into a single country, probably people will name it Japanama.

Can you think of two more such country's unions that could produce similar names like Japanama by overlapping their three letters?