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

I can be cracked, made, told, and played. What am I?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

If you say my name, I will no longer exist. What am I?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

There was a strange boy who was born before his father. How can this be possible?

Find the next number in the series.
1 10 24 43 67 ?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

Count the Triangle in the figure given below:

If eleven plus two equals one, what does nine plus five equal?