Find the next number in the sequence

5 12 24 36 ?

What is the Surname of Barbie Doll?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a bear inside my tent eating my food! What colour was the bear?

Count the number of triangles in the given picture.

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

What is full of holes but still holds water?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??