Today's PUZZLE CLASSIC OF THE DAY

What number can be added to both 170 and 30 so that the resultant sums have a ratio of 3:1?

It is known total age of the family of 4 is 68. Four years ago it was 53. How old is the youngest in the family?

Cut this figure into 6 congruent parts (identical in area and shape, though they can be mirrored).

Cut this figure into 4 congruent parts (identical in area and shape, though they can be mirrored).

Cut this figure into 5 congruent parts (identical in area and shape, though they can be mirrored).

Place the numbers from 1 through 19 in the circles so that the numbers in every 3 circles on a straight line total 30.

A family gathering consisted of father, mother, son, daughter, brother, sister, two cousins, nephew, niece, uncle and aunt. But there were only 4 persons present. Who were they to each other? Drag the respective labels.

Place the digits 1-8 into the grid's cell so that no two consecutive digits are neighbors in the gird, either horizontally, vertically or diagonally.

A train departs Boston for New York. An hour later, another train departs New York for Boston. Both trains travel at the same speed. Which of them will be at a shorter distance from Boston at the moment of their meeting? Show it with the sliding trains. Note: the trains’ lengths can be neglected.

When it's alone, it's big. When it's with others, it's small. What is it?

One can walk 1 mile north, 1 mile west, 1 mile south and end up where the journey has started. Where the person should start such a journey from?

In 10 years the total age of two brothers and two sisters will be 100 years. What will be their total age in 7 years from now?