The hour hand is exactly on a minute mark five times per hour -- on the hour, twelve minutes past the hour, twenty four minutes past, thirty six minutes past, and forty eight minutes past.

Let X be the number of hours, and Y be the number of minutes past the hour. When the hour hand is on a minute mark, the position of the hour hand is 5X + Y/12, and the position of the minute hand is Y. On the first occasion, Y = 5X + Y/12 + 6. This is equivalent to 60X = 11Y - 72. Since Y can only take one of the values in the set { 0, 12, 24, 36, 48 }, it can be determined that the only legal values for the equation are X = 1 and Y = 12. So the time is 1:12.

Similarly, the second occasion's equation is 60X = 11Y - 84. The only legal values here are X = 3 and Y = 24. So the time is 3:24.

Between 1:12 and 3:24, two hours and twelve minutes have elapsed.

We have n+1 = m^2 for some integer m. Thus

n = m^2 - 1 = (m+1)(m-1).

But since n is prime we must have either m+1 = 1 or m-1 = 1. Clearly m+1 > 1, so m-1 = 1. Therefore m = 2 and n = 2^2 - 1 = 3.

By standing back-to-back.

The stars.

The man's son. Since the man has no brothers or sisters, "my father's son" simply means "me". Thus, the second line is equivalent to "that man's father is me".

We know that our hero runs 3/8th of the bridge when the train arrives at the beginning of the bridge, and barely makes it at the end. Suppose the man continues running forward; this means that, when he's 6/8ths of the way across, the train arrives at the beginning of the bridge, they both arrive at the end at the same time.

So in the time that the man runs the remaining 2/8ths of the bridge, the train traverses 8/8ths of the bridge; namely, the train is moving 4x faster than the man, or 15*4 = 60 mph.

Its so easy in not bothering putting my answer here.

Solve it, spoiler later.

u open the refrigerator put the elefant inside and close the refrigerator

u open the refri... u take out the elefant, put the bear inside close the refrigerator

the bear cause he was in the refrigerator

the crocrodiles were in the party