True word's

State True or False : Total number of two letter word, when repetition of letter is not allowed is P(26,2)

Using the words 'necessary and sufficient rewrite the statement The integer n is odd if and only if n^(2) is odd .Also check whether the statement is true.

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. FLYING COLOURS

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. SANCTUM

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. FRAIL

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. HOBNOB

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. DILLY DALLYING

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. HUSH UP

Each item in this section consists of a word or group of words in capital letters, followed by four words or group of words. Select the word or group of words that is most similar in meaning to the word or group of words in capital letters. GRIEVANCES