Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

A man dies of old age on his 25 birthday. How is this possible?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

There is a straight highway. Four different villages lie on that highway. The distance between them is different. The third village is 60km away from the first village; the fourth is 40 km away from the second; the third is 10 km near to the fourth that it is to the second.

Can you calculate the distance between the fourth and the first village ?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

When is the top of a mountain similar to a savings account?

I can write cow in 13 letters.

Can You?