What is the next number in this series?

4,12,84,3612....

Can you find the thief by just looking at the picture below?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Take away the whole and some still remain. What is it?

When it's bad luck to meet a black cat?