What is the next number in the series?

15 29 56 108 208 ?

When does a USA Potato change its nationality?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

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

how come the second man dies?

Find out the number of circles in the given picture having Illusion

Can you identify the famous TV character from the rebus below?

During which month do people sleep the least?