I travel all around the world but always stay in the corner. What am I?

If your uncle’s sister is not your aunt, what relation is she to you?

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

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

What jumps when it walks and sits when it stands?

I always drive my customer away.

Who am I?

O_er_t_o_

Complete the missing letters of the given word.

Which is the smallest number that you can write using all the vowels exactly once?

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’m tall when I’m young, and I’m short when I’m old. What am I?