When the horse strokes the cat, the wood begins to sing.

Answer: violin

More Difficult Riddles with answers

More Difficult Riddles

Where do you go in through one hole and come out through two holes at the same time?
Where humans breath liquid?
Which button does not function when being pressed?
Which word contains 26 letters but only three syllables?
While playing with a metal washer shaped like a ring, Dave accidently pushed it on his finger too far and couldn't get it off. Trying to remove it using soap and water didn't work. The hospital sent him to a service station thinking they could cut the metal. Since the ring was made with a specially hardened steel, it couldn't be cut. Just then Bob arrived on the scene and suggested an easy way to remove the washer in just a few minutes. What was his solution?
Whiling away the hours of flowers, Walking through fields of gold. Preening and pruning in lights fading hours, For petals to freeze in the cold. What is it?
White bird, featherless, flying out of paradise. Flying over sea and land. Dying in my hand.
White fat and fluffy, May even look like a puppy. Seems heavy but is light, Floats about without a worry, But if it turns dark you have to hurry!
Who eats a lot of iron without getting sick?
Who is that with a neck and no head, two arms and no hands? What is it?
Who is that with a neck and no head, two arms and no hands? What is it?
Who lives in a house with one bedroom, 50 hallways, and ghosts lurking everywhere?