An army tank weighing more than a hundred tonne move conveniently on an earthen road. How ?

Mention the kind of biodiversity of more than a thousand varieties of mangoes in India represent. How is it possible .

Which one of the following can bind several hundred times more strongly to the hemoglobin than oxygen?

A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows : $200 for the first day, $250 for the second day, $ 300 for the third day, etc., the penalty for each succeeding day being $50 more than for the preceding day, How much money the contractor has to pay as penalty, if he has delayed the work by 30 days ?

If a plant shows a symptom which could develop due to deficiency of more than one nutrient, how would you find out experimentally, the real deficient mineral element?

A carpenter was hired to build 192 window frames. The first day he made five frames and each day, thereafter he made two more frames than he made the day before. How many days did it take him to finish the job?

The total number of cows in five villages are as follows: Village 1:60,Village 2:90,Village 3:120,Village 4:150 ,Village 5 : 40 Prepare a pictograph of these animals using one symbol + to represent 10 animals and answer the following questions from the pictograph: How many more cows are there in village 2 than in village 1 ?