There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

I can write cow in 13 letters.

Can You?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

why number 8549176320 is one of a kind?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

What two things can you never eat for breakfast?

There is a barrel with no lid and some wine in it. 'This barrel of wine is more than half full,' said Curly. 'No it's not,' says Mo. 'It's less than half full.' Without any measuring implements and without removing any wine from the barrel, how can they easily determine who is correct?

Can you solve the below tricky visual equation?

What has one eye, but can’t see?