What English word has three consecutive double letters?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

How many times do a clock's hands overlap in a day ?

Can you find the missing piece of the Porsche?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

How many times can you subtract the number 5 from 25?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

I have feet, but no legs. Which animal Am I?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...