If something happens 'out of the blue,' what does it mean?

• It happens very slowly.
• It happens unexpectedly.
• It happens very loudly.
• It happens with great effort.

The idiom 'speak of the devil' is used when the person you have just been talking about unexpectedly appears.

What is the meaning of the idiom 'break the ice'?

• To initiate social interaction.

If a task is described as a 'piece of cake,' what does that imply?

• It is very difficult.
• It is very time-consuming.
• It is very easy.
• It is unpleasant.