$CFX What disappears as soon as you say its name?

(Silence.)

11.It does not bark, has no teeth and protects the house, what is it?

(The Key.)

12.Like a clock tick-tock,

it works day and night,

but if it stops a bit,

it doesn’t wind up again.

(The Heart)

13.What gets wet while drying?

(A towel.)

14.It is not bigger than a nut, but it climbs the mountain without legs, what is it?

(The Snail.)

15.How many letters are in the alphabet?

(There are 8 letters in the word “alphabet”)

16.It belongs to you, but everyone else uses it.

(Your name)

17.What can enter a river and not get wet?

(The rays of the sun.)

18.It looks just like a house,

four walls, one roof,

a hundred people inside

that work without stopping

(The hive and bees)