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

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

how come the second man dies?

What makes this number unique: 8,549,176,320?

What is harder to catch the faster you run?

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