There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

How many triangles can you find in this given picture?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

In the image below, can you find the value of an angle(y)

What's a single-digit number with no value?

What has hands, but can’t clap?

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

My location can be determined by the below rebus.
So where am i ?

Jenifer and Jesica are having a conversation.

Jenifer: I am definitely not over 30.
Jesica: I am 28 and you are surely 5 years older to me at least.
Jenifer: No, you are at least 29.

You are told that both of them are lying throughout in the conversation. Can you find their respective ages?

John went to meet his friend Jacob, but when he was about to reach the main gate, John notices that Jacob had a mighty dog who was fastened to the tree. The chain is long enough that it allows the dog to reach the main gate.

How can the John reach the main gate?