Today's PUZZLE CLASSIC OF THE DAY

What arithmetic symbol can we place between 2 and 3 to make a number greater than 2 but less than 3?

This unusual figure can be divided into two congruent parts - identical in size and shape. Can you do it?

While traveling by train, a passenger fell asleep at exactly halfway till his destination. He slept till he had half as far to go as he went while sleeping. How much of the trip he slept?

A tetrahedron has been sliced from a cube, as is shown. How its volume is related to the remainder of the cube?

Yesterday I was 25. Next year I will be 28. What day is the person's birthday?

A flock of ducks was flying in the sky. One in front, two behind; one behind and two in front; one between two; and three in a row. How many ducks were in the flock?

A bottle and cork cost $1.10. The bottle costs a dollar more than the cork. How much does the cork cost?

If you add the age of a man to the age of his wife you get a combined age of 91. He is now twice as old as she was when he was as old as she is now. What are their ages?

One digit appears the most in the first 100 numbers: 1, 2, 3, ..., 98, 99, 100. What digit and how many times does it appear in the range?

It's raining outside at midnight. What are the chances there is a sunny weather in 72 hours?

A woman was carrying a basket of eggs to market when a passerby bumped her. She dropped the basket and all the eggs broke. The passerby, wishing to pay for her loss, asked: “How many eggs were in your basket?“ “I don't remember exactly,“ the woman replied, “but I do recall that whether I divided the eggs by 2, 3, 4, 5, or 6, there was always 1 egg left over. When I took the eggs out in groups of 7, I emptied the basket.“ What is the least number of eggs that broke?

A cone, a sphere, and a cylinder are identical in height and width. What is the ratio between their respective volumes?