What should come in place of the question mark(?) in the following number series?
1, 5, 13 , 29 ,? , 125 , 253

There is a difference of 8 years between the ages of Waqar and Naseema. When they were married 30 years ago. So 4 times Waqar's age was equal to 5 times Nasima's age. What is the sum of his present age?

Area of rectangle is 96 square meters. When the length of the same rectangle is increased by 6 metres and the breadth is decreased by 3 metres, then the area of rectangle decreases by 30 square metres. What is the perimeter of a square whose sides are equal to the length of the rectangle? 

Rekha bought a scooter for Rs 20,000 and sold it for Rs 22,000. What is the profit percentage?

A man can row with the stream at 9 km/hr. and against the stream at 3 km/hr. His speed in still water is -

A rectangular park is 120 m long and 104 m wide. A 1-m wide path runs along the boundary of the park, remaining completely inside the park area. Thus, the outside edges of the path run along the boundary wall of the park. The inside edges of the path are marked with a white line of negligible thickness. If it costs ₹2.50 to mark each metre with the white line, then how much would it cost (in ₹) to fully mark the inside edges of the path?

The simple interest on Rs. 12000 at a certain rate of interest in five years is Rs. 7200. Find the compound interest on the same amount for five years at the same rate of interest.