When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

A man desired to get into his work building, however he had forgotten his code.
However, he did recollect five pieces of information
* Fifth number + Third number = 14
* The fourth number is one more than the second number.
* The first number is one less than twice the second number.
* The second number and the third number equals 10.
* The sum of all five numbers is 30.

What is the code ?

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!

Replace the question mark with the correct number.

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

Can you find the hidden animal in the picture below?

Find the next number in the sequence

5 12 24 36 ?

Find out which of the given views in the picture is accurately the top view of the given pyramid.