Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

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

What is the word or phrase below?
R | E | A | D

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Identify the hidden meaning behind this picture?