Name the organ where the embryo develops:

Jeremy is 26 years younger than his father. Eight years hence his father's age will be two years less than twice his age. What is Jeremy's present age?

Which of the following animal is not triploblastic?

A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1, in the first 10 s and distance X2 in the remaining 10 s, then which of the following is true?

What does the symbol R in electricity stand for ?

A sump is filled by three tankers with uniform flow. The first two tankers operating simultaneously fill the sump in the same time during which the sump is filled by the third tanker alone. The second tanker fills the sump 5 hours faster than the first tanker and 4 hours slower than the third tanker. The time required by the first tanker is:

How many molecules are present in one mole of water?

A train travelling at the speed of 66 kmph crosses a 300 m long platform in 24 seconds. How long was the train?