Can you name some countries which do not have the alphabet 'A' in them?

You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake. How many cakes do you have to leave home to make sure that you arrive at a friend's house with exactly two

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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 ?

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

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

Why do we preferably have round manhole covers and not square ones?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Can you find the company name in the pictogram below?

Imagine you are in a room with no windows or doors. How will you get out?