What four weights can be used to balance from 1 to 30 pounds?

Can you solve the rebus below?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?