What is the word or phrase below?
R | E | A | D

What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

When it's bad luck to meet a black cat?

If 1+9+8=1, what is 2+8+9?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Can you find the 09 errors in the picture below?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10