What is the riddle which can be asked all day with a different correct answer each time.

Find the missing number in the image below.

What does it mean?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

My location can be determined by the below rebus.
So where am i ?

What is the next shape from answers A, B, C, and D figure?

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 have no life, but I can die. What am I?

13 decks of cards have been mixed. What is the minimum number of cards that must be taken out from the above-mixed cards to guarantee at least one 'four of a kind?