Why is Saturday stronger than Monday?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

Our product and our sum always give the same answer. Who are we?

What breaks yet never falls, and what falls yet never breaks?

What has one letter and starts with an E?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.