Declension table of ?praśnatantra

Neuter	Singular	Dual	Plural
Nominative	praśnatantram	praśnatantre	praśnatantrāṇi
Vocative	praśnatantra	praśnatantre	praśnatantrāṇi
Accusative	praśnatantram	praśnatantre	praśnatantrāṇi
Instrumental	praśnatantreṇa	praśnatantrābhyām	praśnatantraiḥ
Dative	praśnatantrāya	praśnatantrābhyām	praśnatantrebhyaḥ
Ablative	praśnatantrāt	praśnatantrābhyām	praśnatantrebhyaḥ
Genitive	praśnatantrasya	praśnatantrayoḥ	praśnatantrāṇām
Locative	praśnatantre	praśnatantrayoḥ	praśnatantreṣu

Compound praśnatantra -

Adverb -praśnatantram -praśnatantrāt