How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Solve the following series:
AZ, GT, MN, __, YB

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

Can you decipher the below rebus?

PBLUESAISNUERSES

I look at you, you look at me, I raise my right, you raise your left. What am I?

I am the fastest animal but cannot climb the tree. What am I?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.