Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

A swan sits at the center of a perfectly circular lake. At an edge of the lake stands a ravenous monster waiting to devour the swan. The monster can not enter the water, but it will run around the circumference of the lake to try to catch the swan as soon as it reaches the shore. The monster moves at 4 times the speed of the swan, and it will always move in the direction along the shore that brings it closer to the swan the quickest. Both the swan and the the monster can change directions in an instant.
The swan knows that if it can reach the lake's shore without the monster right on top of it, it can instantly escape into the surrounding forest.

How can the swan successfully escape?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

What can you hold in your right hand, but never in your left hand?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Which number should replace the question mark?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?