You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Can you find the 09 errors in the picture below?

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

Which is heavier: a ton of bricks or a ton of feathers?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What can you see in the middle of March and April that you can never see in any other month?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.