Can anybody give me a short speech on mysteries? I need it urgently

Such exercises are meant for the development of writing skills in the students. We recommend that you frame such answers on your own. However, a few pointers are being given below:

• also known as 'The Devil's Triangle'
• the location of the triangle
• vanishing of ships and air crafts due to no known reasons
• supernatural explanations: Death rays, sea monsters, alien abductions, etc.
• scientific theories: Magnetic compass, natural calamities
• reports and news
• the claims of the witnesses

Given below is how you may begin your answer:

The Bermuda Triangle or 'The Devil's Triangle' concerns an urban legend that points this area as being the reason behind the mysterious disappearances of many aircrafts and sea vessels. The three vertices of this triangle are in Florida, Bermuda and Puerto Rico. Various theories--supernatural and scientific-- have been offered till date to explain this strange stretch over the Atlantic Ocean....