- The positions of the first and the fourth letters of the word FOLDER are interchanged; similarly, the positions of the second and fifth letters and thir... 
- How many pairs of letters are there in the word “ADVERTISER” which has as many letters between them in the word as in the English alphabetical seri... 
- Each even digit in the number 496735 is replaced by the next higher digit and each odd digit is replaced by the previous lower digit and the digits obta... 
- Which signs should be interchange to make the given equation correct. - 15 ÷ 3 + 7 × 3 - 4 = 0 
- If we arrange all the digits of the number “783695421” in ascending order from left end, then what will be the sum of 5th number from the right end ... 
- Unscramble the following letters to frame a meaningful words, then find out the correct numerical position of the letters: - How many such pairs of letter are there in the word FASHION each of which has as many letters between them in the word as in the English alphabet? ...
- How many pairs of letters are there in the word” TRANSCRIPT” which have as many letters between them in the word as in alphabetical series? 
- If we arrange all the vowels of the word “HEMISPHERE” in English alphabetical order first and then all the consonants in alphabetical order, then w... 
- How many such pairs of digits are there in the number 713286549 (both forward and backward directions), each which has many digits between them as in th...