Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

A time long back, there lived a king who ruled the great kingdom of Trojan House. As a part of the renovation of the kingdom to meet future security needs, he asked his chief architect to lay down a new play in a manner that all of his 10 castles are connected through five straight walls and each wall must connect four castles together. He also asked the architect that at least one of his castles should be protected with walls. The architect could not come up with any solution that served all of King's choices, but he suggested the best plan that you can see in the picture below. Can you find a better solution to serve the king's demand?

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?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

In the picture given below, can you find out which digit will take place of the question mark?

When is the top of a mountain similar to a savings account?

Can you fill the blank with the correct number?

6 30 870 756030 _____

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?