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

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?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

What does this mathematical rebus means ?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

what's the probability of getting a king or a queen from a pack of 52 cards?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

What is the difference between a jeweller and a jailer?