If 21x = 79x, what is the value of x?

Can you find out the number that should replace the question mark with a valid reason?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What do you answer even though it never asks you questions?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

What does this rebus picture identify?