4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

How many triangles can you count in the figure given?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Can you find out the total number of triangles in the given figure?

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?