Find the wrong number in the sequence:

19, 26, 33, 46, 59, 74, 91

Find the unit place digit of the product of all prime numbers between 1 and 17^100.

Which of the following is equal to 2{(sin A)^3 + (cos A)^3}/(sin A + cos A)?

 
Find the speed of the train, if a train 142 m long passes a pole in 6 seconds. 

  An alloy contains14 parts of tin and 100 parts of copper. What is the percentage of tin in the alloy ? 

The radius of a wheel is 22.4 cm. What is the distance covered by the wheel in making 500 revolutions?

 The area of a circular field is 13.86 hectares. Find the cost of fencing it at the rate of Rs. 4.40 per metre. 

A bag contains 6 blue shirts, 3 white shirts, and 4 green shirts. If 3 shirts are drawn randomly, what is the probability that all 3 belong to different colors?

A box contains 5 red and 4 white marbles. Two marbles are drawn successively from the box without replacement, and the second one is white. What is the probability that the first marble drawn is also white?

 A cube is cut in two equal parts along a plane parallel to one of its faces. One piece is then coloured red on the two larger faces and green on the remaining, while the other is coloured green on two smaller adjacent faces and red on the remaining. Each is then cut into 32 cubes of same size and mixed up. 

 How many cubes have two red and one green face on each ?