Best easy riddles for kids

What is invisible and makes people suffer from symptoms like sweating and nausea, yet people can’t survive without it?

What is red but it smells like a blue paint?

Name four days of the week that start with the letter "t"?

You are a bus driver. The bus starts out empty. At the first stop 4 people get on. At the second stop, 8 people get on and 3 get off. At the third stop, 2 people get off and 4 get on. The question is, what color are the bus driver's eyes?

Our dinner guests cry that we are evil, when they notice their place in the meal. But its no big deal why; we are just one big happy tribe! And we get really fed up with people! Who, What or Are we?

There are 2 ducks in the front, 1 in the middle, and 2 in the back.... How many are there in total?

David's father has three sons : Snap, Crackle and _____ ?

What has only two words, but thousands of letters?

Name the only sport in which the ball is always in possession of the team on defense, and the offensive team can score without touching the ball?

What four related words are merged here: SWAS PURI UINM NTTU MGER MNER