Complete the table series riddle by finding the number that can replace "??".

What is the difference between a jeweller and a jailer?

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 ?

What does the below mathematical rebus mean?

Decipher

yyyy u r, yyyyy u b, i c u r y+y 4 ? by sharks. How would you survive?

Which digit occurred maximum times between the number 1 and 1000?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

Can you count the number of triangles in the given figure?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?