With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Count the number of triangles in the below picture?

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?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What does this mathematical rebus means ?

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

what does the below rebus means?

Which is the rope you never skip with?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?