An evening theater performance is scheduled every third day. What is the maximum number of performances that can take place over a 25-day period?

If you had one match and entered a dark room in which there were a kerosene lamp, an oil burner, and a wood burning stove, what do you light first?

A farmer has 30 animals consisting of chickens and cows. The animals have 74 legs in total. Find out the number of chickens and cows the farmer has.

You have a glass of water that looks about half full. How can you tell, only using the glass of water itself, if the glass is half full or not? The glass is a right cylinder.

Mr and Mrs Smith went for a picnic. Mrs. Smith has 5 sons and each son has a sister who has 5 daughters each of whom have 1 brother each. How many of them went for the picnic?

Six glasses are in a single row. First three glasses are filled with water and the rest are empty. Move only one glass so that empty and filled glasses are aligned alternately.

Only mental calculation allowed. Take 1000 and add 40 to it. Now add another 1000. Now add 30. Add another 1000. Now add 20. Now add another 1000. Now add 10. What is the total?

One minute ago, a clock that strikes only the hours just finished striking an hour. If the clock has struck a total of 21 in the last 2.5 hours, what hour did it just finish striking?

The rungs of a 10 foot ladder attached to a ship are 1 foot apart. If the water is rising at the rate of one foot an hour, how long will it take until the water covers over the ladder?

To weigh a 40-pound object with four weights – 1, 3, 9, and 27 pounds, the merchant placed all of the weights on one side of the scale and the object on the other side. But how did he weigh 5 pounds?

I went to bed at eight o’clock in the evening and wound up my clock and set the alarm to sound at nine o’clock in the morning. How many hours sleep would I get before being awoken by the alarm?

There are two planes. One is flying from New York to Tokyo at a speed of 800 MPH. The other is flying from Tokyo to New York at a speed of 700 MPH. When the planes meet, which one will be closer to Tokyo?

A toad is laboring hard to climb up the wall of a deep well. He manages to climb 3 yards during day, and while resting at night slips back 2 yards. How many days will he take to complete his task of scaling 30 yards?

A large truck is crossing a bridge 1 mile long. The bridge can only hold 14000 lbs, which is the exact weight of the truck. The truck makes it half way across the bridge and stops. A bird lands on the truck. Does the bridge collapse?

“Life’s funny”, said an old friend when I bumped into him the other day. “Listen to this, I was born in March, yet I celebrate my birthday in August, and last February I married my mother”. How is this possible?