Which of the following is the third member of the Dobereiner triad, that also features Lithium and Sodium?

Rathin is now 16 years old while his cousin is 7 years. After how many years will Ratin's age be 1.5 times that of his cousin?

In the following series, one letter is missing as shown by the question mark. Select the missing term from the given options.

Q, O, L, H, ?

How many triangles are present in the below figure?

Read the following statements and identify the logically correct conclusion from the given information.

Statement :

Time and tide wait for none.

Conclusions :

1. Time is not in anyone's control.

2. One has to keep moving in life forgetting the bad experiences of past.

Use each of the below figures only once and form three groups. The three groups so formed are

Who took over as the new chairman of the Tata Sons owned Vistara Airline in 2016? Prior to this, he was the Managing Director of Titan for a long time.

The length of one side of a rhombus is 13 cm and one of the diagonals is 10 cm. What is the legth of the other diagonal?