Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

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?

When is the top of a mountain similar to a savings account?

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?

If six children and two dogs were under an umbrella, how come none of them got wet?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

I have no life, but I can die. What am I?