Ozone saves the biosphere by absorbing high energy radiations called __________.

It is difficult to cut things will a blunt knife because

উক্ত রোগটি কোন ধরনের পুষ্টি উপাদানের অভাবে হয়ে থাকে?

A bus travels at a speed of 50 km/h to go from its origin to its destination at a distance of 300 km and travels at a speed of 60 km/h to return to the origin. What is the average speed of the bus?

25. Guess the correct answer if 1+4 = 5; 2+5 = 12; 3+6 = 21; 8+11 = ?

31. When I was four years old, my sister was half my age. Now, I am 18. How old is my sister now?

32. Harry had six siblings. All of them have two years of age difference. The youngest is Jessy, his seven years old sister, while Harry is the most senior. Calculate Harry’s age.

35. Angel visited a fair near her home. She traversed on her new bicycle presented by her father for winning the art contest. After reaching the fair, Angel noticed that 14 bicycles and tricycles were parked. The total number of wheels in the parking area is 38. Can you find the number of tricycles that were parked there?

How many vertices are present in a cube?