Find the next number in the sequence

5 12 24 36 ?

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

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Remove two matchsticks to make the below equation correct.

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

You can see three almost identical images below. Can you spot the odd one out from them?

How can you leave a room with two legs and return with six legs?

What kind of band never plays music?