Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Which tank will fill first?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What does below Rebus say?

XLR8

What is Luis Suarez's (Soccer Player) favorite tea?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

I have thought of a number that is made up by using all the ten digits just once. Here are a few clues for you to guess my number:

First digits is divisible by 1.
First two digits are divisible by 2.
First three digits are divisible by 3.
First four digits are divisible by 4.
First five digits are divisible by 5.
First six digits are divisible by 6.
First seven digits are divisible by 7.
First eight digits are divisible by 8.
First nine digits are divisible by 9.
The number is divisible by 10.

Can you find out the number ?