What goes up but never comes down?

Find the next number in the following series:
6, 14, 26, 98, __?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

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

Can you count the number of lines in the below picture?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

If your uncle’s sister is not your aunt, what relation is she to you?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.