Last week, I travelled from Birmingham to Glasgow (via bicycle).
On the first day I travelled one quarter of the distance.
On day two, I travelled one half of the remaining distance.
On day three, I travelled three quarters of the remaining distance.
Yesterday I travelled one third of the remaining distance.
Brothers and sisters I have none but this man's father is my father's son.
Who is the man?
What 5-letter word becomes shorter when you add two letters to it?
Find a number less than 100 that is increased by one-fifth of its value when its digits are reversed.
A lift is on the ground floor. There are 4 people in the lift including me.
When the lift reaches 1st floor, 1 person gets out 3 people get in.
The lift goes up to the second floor, 2 people get out 6 people get in.
It then goes up to the
There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs?