Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Rob is taller than Edwin, and Jurgen is shorter than Rob.
Of only one of the following statements, we now certainly know it is correct:

A.Edwin is taller than Jurgen
B.Jurgen is taller than Edwin
C.It cannot be determined if Jurgen or Edwin is the tallest.

In the image given, you can find several triangles. Can you count them all?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

Do You See It?

How do you go from 98 to 720 using just one letter?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.