Which is the smallest number that you can write using all the vowels exactly once?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you decipher the below rebus?

PBLUESAISNUERSES

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Which fur should we be getting from the Lion?

How many triangles can you find in this given picture?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?