I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

A boy collects white seashells from the sea and brings them home every night. When he has enough of them, he decides to sell them to a trader.

The trader is ready to buy the shells and he asks the boy about the quantity. At this, the boy starts calculating. He has a giant box that contains 3 mini boxes. Two of them have another mini box inside. If the giant box can hold 50 shells, how many brown shells can he sell to the trader?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

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.

A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

What word begins and ends with an E, but has only one letter?

Can you decipher the two rows to find the hidden word?