Riddles and brain teasers for kids only

What disappears the moment you say its name?

What are the next three letters in this sequence: O-T-T-F-F-S-S?

I was born before my father, killed my mother and married my sister. But I didn’t break any laws. How did I do it?

I come from a mine but I’m surrounded by wood. What am I?

What word has three consecutive double letters?

I have no houses but I do have cities and, although I have water, no fish. What am I?

I belong to you but anyone can use me. What am I?

How can four be half of five?

What can you see in the middle of March and April that you never see at the beginning or the end of either?