Find out the missing number in the picture attached:

What demands an answer, but asks no questions

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

What you cannot hold but it is yours?

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?